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When a hard freeze arrives, a best rv winterizing kit is the difference between plumbing that sleeps through winter and pipes that split and leak in spring. Water left in an RV line expands as it freezes, so the kits here push the water out with air or feed antifreeze into the lines. The kits are compared on stated hose length, pressure gauges, valves, materials and warranty terms, and the picks below are ordered by their Solar Score.
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Quick picks
Best Overall EVOULTES 17-Inch Blowout Kit: Schrader valve, shut-off valve and 300 PSI max pressure in a 5-piece kit Check price on Amazon
Longest Hose HFVSLFA 60-Inch Gauge Kit: 60-inch hose with a 0-200 PSI pressure gauge and shut-off valve Check price on Amazon
Best Pump Kit Camco Antifreeze Hand Pump Kit: Hand pump with CSA lead-free certification to NSF/ANSI 372 Check price on Amazon
Best Brass Build BUTTIKU Blowout Adapter Kit: Solid lead-free brass parts with a flexible 12.8-inch hose Check price on Amazon
Simplest Antifreeze Lettry Bottle Adapter Kit: Bottle adapter with a 3-foot hose for a 1-gallon antifreeze bottle Check price on Amazon
The kits we chose
| # | Product | Solar Score | Buy |
|---|---|---|---|
| 1 | EVOULTES 17-Inch Blowout Kit | 9.7/10 | Buy on Amazon |
| 2 | HFVSLFA 60-Inch Gauge Kit | 9.7/10 | Buy on Amazon |
| 3 | Camco Antifreeze Hand Pump Kit | 9.5/10 | Buy on Amazon |
| 4 | BUTTIKU Blowout Adapter Kit | 9.5/10 | Buy on Amazon |
| 5 | Lettry Bottle Adapter Kit | 9.4/10 | Buy on Amazon |
EVOULTES 17-Inch Blowout Kit
A lead-free brass blowout kit with a 17-inch hose, Schrader valve adaptor and shut-off valve for RVs and sprinkler systems.
Pros
- 17-inch hybrid rubber hose reaches tight spaces and eases stress on pipes and fittings
- Lead-free brass certified to contain less than 0.25% lead
- Max pressure of 300 PSI with a temperature range of -22°F to +250°F
- Extra roll of Teflon tape included to prevent air leaks
Cons
- No pressure gauge is included
- Needs an air compressor, which is not included
- Female-to-female converter is an add-on, not in the box
- Hose is shorter than the 60-inch hose on the HFVSLFA kit
Detailed Review
The listing states a lead-free all-brass dual-purpose blowout kit with a Schrader valve adaptor, certified to contain less than 0.25% lead, with an adjustable shut-off valve and a 17-inch hybrid rubber hose. It lists a max pressure of 300 PSI, a temperature range of -22°F to +250°F, a standard 1/4-inch NPT air quick plug and 3/4-inch female and male garden hose threads, plus an extra roll of Teflon tape. The listing states 5 items in the box and a 1-year warranty.
Who it's for: RV and sprinkler owners who want a brass blowout adapter with a Schrader valve and a hose long enough to reach tight spaces. Who should skip it: buyers who want a pressure gauge on the kit or an antifreeze pump instead of air.
Its Solar Score of 9.7/10 comes from performance 30/35, build 22/25, value 21/25, safety 7/10 and warranty 3/5: 83 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Hose | 17 inches, hybrid rubber |
|---|---|
| Max pressure | 300 PSI |
| Temperature range | -22°F to +250°F |
| Fittings | 1/4-inch NPT quick plug, 3/4-inch GHT |
Taken from the seller's listing on 15 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. Lead-free brass certified to contain less than 0.25% lead stated, so safety scores 7 of 10. 1 year warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
HFVSLFA 60-Inch Gauge Kit
A 60-inch blowout kit with a 0-200 PSI pressure gauge, shut-off valve and brass fittings for RVs, campers and boats.
Pros
- 60-inch hose is the longest hose in this group
- 0-200 PSI pressure gauge shows the pressure value at a glance
- Shut-off valve adjusts airflow, with a female-to-female adapter included
- 2 seal washers and 1 roll of thread sealing tape in the box
Cons
- Shut-off valve is zinc alloy, not brass
- No max pressure figure is stated for the hose
- No temperature range is stated
- No antifreeze option is included; air blowout only
Detailed Review
The listing states a 60-inch RV winterizing hose with a pressure gauge, shut-off valve and 3/4-inch GHT blowout fitting adaptor with a 1/4-inch quick connect plug. It lists a 0-200 PSI pressure gauge, a female-to-female adapter, 2 seal washers and 1 roll of thread sealing tape, with brass fittings, a flexible reinforced synthetic rubber hose and a zinc alloy shut-off valve. The listing states a 1-year warranty.
Who it's for: RV, camper and boat owners who want to watch the pressure while they blow out lines with a long hose. Who should skip it: buyers who want a stated max pressure figure or an antifreeze method.
Its Solar Score of 9.7/10 comes from performance 32/35, build 21/25, value 21/25, safety 5/10 and warranty 3/5: 82 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Hose | 60 inches |
|---|---|
| Pressure gauge | 0-200 PSI |
| Fittings | 1/4-inch quick plug, 3/4-inch GHT |
| Valve | Shut-off valve, zinc alloy |
Taken from the seller's listing on 15 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. 0-200 PSI pressure gauge and shut-off valve stated, so safety scores 5 of 10. 1 year warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Camco Antifreeze Hand Pump Kit
A hand pump kit that pumps antifreeze directly into the RV waterline and supply tanks, with CSA lead-free certification.
Pros
- Pumps antifreeze directly into the waterline and supply tanks by hand
- CSA lead-free content certified to NSF/ANSI 372 for drinking water systems
- Includes a hand pump, an inlet tube and a flexible outlet tube
- Light at 0.2 pounds and sized at 14.0 by 5.0 by 4.0 inches
Cons
- RV antifreeze is not included
- Manual pumping only; no air blowout fitting is included
- For RV plumbing systems only; not for use with gasoline, kerosene or other fuels
- No warranty term is stated
Detailed Review
The listing states a hand pump kit with 1 hand pump, 1 inlet tube and 1 flexible outlet tube for connection to the travel trailer city water inlet, for pumping antifreeze directly into the RV waterline and supply tanks. It lists CSA lead-free certification to NSF/ANSI 372, a weight of 0.2 pounds and a size of 14.0 by 5.0 by 4.0 inches, and notes that RV antifreeze is not included. The listing states the kit is designed for RV plumbing systems only.
Who it's for: RV owners who winterize with antifreeze and want a simple hand pump that feeds it straight into the waterline. Who should skip it: buyers who prefer an air blowout kit or want antifreeze included in the box.
Its Solar Score of 9.5/10 comes from performance 28/35, build 20/25, value 20/25, safety 7/10 and warranty 0/5: 75 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Kit | Hand pump, inlet tube, outlet tube |
|---|---|
| Certification | CSA lead-free, NSF/ANSI 372 |
| Weight | 0.2 pounds |
| Size | 14.0 x 5.0 x 4.0 in |
Taken from the seller's listing on 15 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. CSA lead-free content certified to NSF/ANSI 372 stated, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
BUTTIKU Blowout Adapter Kit
A lead-free brass blowout adapter with a shut-off valve and a flexible 12.8-inch hose for RVs, campers and sprinkler systems.
Pros
- Solid lead-free brass parts with a flexible reinforced synthetic rubber hose
- Shut-off valve included, with 3/4-inch male and female garden hose connectors
- Flexible hose reaches tight spaces and eases stress on pipes and fittings
- Hose is made in USA
Cons
- No pressure gauge is included
- No max pressure figure is stated
- No warranty term is stated
- Needs an air compressor, which is not included
Detailed Review
The listing states a winterizing kit with a shut-off valve, 3/4-inch male and female garden hose connectors and a flexible hose, with a pre-assembled length of 12.8 inches. It lists solid lead-free brass parts and a 3/8-inch nominal diameter InstaGrip hose of flexible reinforced synthetic rubber, and notes the hose is made in USA. The listing states the kit is 100% outdoor rated and connects to a standard air compressor and garden faucet.
Who it's for: RV and sprinkler owners who want a short, flexible brass blowout adapter with a shut-off valve. Who should skip it: buyers who want a pressure gauge or a stated warranty term on the listing.
Its Solar Score of 9.5/10 comes from performance 28/35, build 21/25, value 20/25, safety 4/10 and warranty 0/5: 73 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Length | 12.8 inches pre-assembled |
|---|---|
| Hose | 3/8-inch, flexible reinforced synthetic rubber |
| Material | Solid lead-free brass |
| Connectors | 3/4-inch male and female garden hose |
Taken from the seller's listing on 15 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. Solid lead-free brass parts stated, so safety scores 4 of 10. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Lettry Bottle Adapter Kit
An antifreeze bottle adapter kit with a 3-foot hose and brass twist lock fittings for camper trailers.
Pros
- Adapter locks onto the antifreeze bottle and the hose with twist connect fittings
- Brass male and female fittings will not rust
- 3-foot 3/4-inch hose fits a 1-gallon antifreeze bottle opening
- Soft yet durable PVC hose stays reusable in cold weather
Cons
- Adapter fits a 1-gallon antifreeze bottle opening only
- No pressure gauge is included
- No shut-off valve is stated
- 3-foot hose is shorter than the 60-inch hose on the HFVSLFA kit
Detailed Review
The listing states an antifreeze bottle adapter kit with a 3-foot 3/4-inch hose, brass twist lock fittings and a leak-free seal, for camper trailers. It lists an adapter interface that fits a 1-gallon antifreeze bottle opening, brass male and female fittings, and a soft yet durable PVC hose that stays reusable in cold weather. The listing states a weight of 0.53 pounds and no warranty.
Who it's for: camper trailer owners who winterize with antifreeze and want a no-spill bottle adapter with a short hose. Who should skip it: buyers who want a pressure gauge, a shut-off valve or a longer hose.
Its Solar Score of 9.4/10 comes from performance 26/35, build 20/25, value 20/25, safety 3/10 and warranty 0/5: 69 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Hose | 3 feet, 3/4-inch |
|---|---|
| Fittings | Brass twist lock |
| Bottle opening | 1-gallon antifreeze bottle |
| Weight | 0.53 pounds |
Taken from the seller's listing on 15 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. Brass twist lock fittings with leak-free seal stated, so safety scores 3 of 10. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
More picks to compare
HFVSLFA 60-Inch Gauge Kit, BlueBlue version of the same 60-inch kit with pressure gauge and shut-off valve.Check on Amazon
YTFSA 17-Inch Blowout Kit17-inch hose with a 0-60 psi gauge, shut-off valve and 300 PSI max pressure.Check on Amazon
Gute 17-Inch Gauge KitLead-free brass kit with a 0-100 PSI gauge, shut-off valve and 17-inch hose.Check on Amazon
VANPET By-Pass Valve Kit3-way by-pass valve with two switches and a 59-inch siphon hose.Check on Amazon
VIAIR 90145 Winterization KitBlowout kit with a 220 PSI gauge for Viair 400P-RV and 450P-RV models.Check on Amazon
Numbers side by side
| Kit | Solar Score | Type | Hose length | Pressure gauge | Warranty | Amazon |
|---|---|---|---|---|---|---|
| EVOULTES 17-Inch Blowout Kit | 9.7/10 | Blowout adapter | 17 inches | Not stated | 1 year | View on Amazon |
| HFVSLFA 60-Inch Gauge Kit | 9.7/10 | Blowout adapter with gauge | 60 inches | 0-200 PSI | 1 year | View on Amazon |
| Camco Antifreeze Hand Pump Kit | 9.5/10 | Antifreeze hand pump | Not stated | Not stated | Not stated | View on Amazon |
| BUTTIKU Blowout Adapter Kit | 9.5/10 | Blowout adapter | 12.8 inches | Not stated | Not stated | View on Amazon |
| Lettry Bottle Adapter Kit | 9.4/10 | Antifreeze bottle adapter | 3 feet | Not stated | Not stated | View on Amazon |
We copied each rating from the seller’s listing as the brand states it; data date 15 November 2026.
Where the points went
The Solar Score weighs performance, build, value, safety and warranty. For a winterizing kit, safety means lead-free materials, certifications and pressure control the listing actually states; a kit that states none scores zero on that line, whatever its hose length. Two of the five kits state a warranty term, and only the Camco kit states a certification for drinking water systems. How we pick explains the weights.
| Product | Solar Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| EVOULTES 17-Inch Blowout Kit | 9.7 | 30 | 22 | 21 | 7 | 3 |
| HFVSLFA 60-Inch Gauge Kit | 9.7 | 32 | 21 | 21 | 5 | 3 |
| Camco Antifreeze Hand Pump Kit | 9.5 | 28 | 20 | 20 | 7 | 0 |
| BUTTIKU Blowout Adapter Kit | 9.5 | 28 | 21 | 20 | 4 | 0 |
| Lettry Bottle Adapter Kit | 9.4 | 26 | 20 | 20 | 3 | 0 |
We place weighted points on a scale whose ends are 9.2 and 9.8. Because the mapping is straight, a unit with more points never shows less.
How to choose the best rv winterizing kit
Air blowout or antifreeze pump
Three of the five kits here blow lines out with air from a compressor, and two feed antifreeze instead: the Camco kit pumps antifreeze by hand into the waterline and supply tanks, while the Lettry kit adapts an antifreeze bottle to the winterization port with a 3-foot hose. Air blowout leaves no antifreeze to flush in spring, and antifreeze protects lines that air cannot fully clear. Match the method to the RV manual and to the gear already on hand: a blowout kit needs an air compressor, and a pump kit needs antifreeze, which the Camco kit does not include. The best RV hand pump winterizing kit guide covers pump kits in more detail.
| Kit | Method | What is included |
|---|---|---|
| EVOULTES 17-Inch Blowout Kit | Air blowout | 17-inch hose, Schrader valve, shut-off valve, Teflon tape |
| HFVSLFA 60-Inch Gauge Kit | Air blowout | 60-inch hose, gauge, shut-off valve, adapter, washers, tape |
| Camco Antifreeze Hand Pump Kit | Antifreeze pump | Hand pump, inlet tube, outlet tube |
| BUTTIKU Blowout Adapter Kit | Air blowout | 12.8-inch hose, shut-off valve |
| Lettry Bottle Adapter Kit | Antifreeze bottle adapter | Adapter, 3-foot hose |
Read the gauge before you blow
A pressure gauge shows the air pressure in the line while the compressor runs, and only the HFVSLFA kit here states one: a 0-200 PSI gauge with a shut-off valve on a 60-inch hose. The EVOULTES kit states a max pressure of 300 PSI and a shut-off valve but no gauge, and the YTFSA and Gute kits in the more picks state gauges of 0-60 psi and 0-100 PSI. A gauge is the part that keeps air pressure in check, so weigh it against hose length when choosing between blowout kits. The best RV winterizing kit with blowout adapter guide compares blowout kits in more detail.
Match hose length and fittings to the RV
Hose length sets how far the adapter reaches from the compressor to the city water inlet. The HFVSLFA kit states a 60-inch hose, the EVOULTES kit a 17-inch hose, the BUTTIKU kit a pre-assembled length of 12.8 inches, and the Lettry kit a 3-foot hose. All four blowout and bottle kits use 3/4-inch garden hose threads with a 1/4-inch air quick plug, so check the RV inlet thread before ordering. The Camco pump kit connects to the city water inlet with its flexible outlet tube instead. The how to clean an RV water tank guide covers the water system side.
Check materials and warranty terms
Lead-free brass is the material to look for where drinking water runs: the EVOULTES kit states lead-free brass certified to contain less than 0.25% lead, the BUTTIKU kit states solid lead-free brass, and the Camco kit states CSA lead-free certification to NSF/ANSI 372. Warranty terms are short here: the EVOULTES and HFVSLFA kits state a 1-year warranty, and the other three kits state no term. A stated term is worth more than a vague promise, so read the warranty line before ordering.
Sizing Notes
- Match hose length to the distance from compressor to inlet: 60 inches on the HFVSLFA kit against 17 inches on the EVOULTES kit.
- Match the gauge range to the pressure used: 0-200 PSI on the HFVSLFA kit, with a max pressure of 300 PSI stated for the EVOULTES kit.
- Check fittings against the RV inlet: 3/4-inch garden hose threads and a 1/4-inch air quick plug on the blowout kits.
- Keep antifreeze on hand for pump kits: the Camco kit pumps antifreeze but none is included, and the Lettry adapter fits a 1-gallon antifreeze bottle opening.
FAQ: power away from the grid
Which kits here need an air compressor?
The EVOULTES, HFVSLFA and BUTTIKU blowout kits connect to a standard air compressor. The Camco pump kit and the Lettry bottle adapter use antifreeze instead.
Which kit here has the longest hose?
The HFVSLFA kit, at 60 inches. The EVOULTES kit states a 17-inch hose, the BUTTIKU kit a pre-assembled length of 12.8 inches, and the Lettry kit a 3-foot hose.
Which kits here state a pressure gauge?
Only the HFVSLFA kit among the five picks, with a 0-200 PSI gauge. In the more picks, the YTFSA kit states a 0-60 psi gauge and the Gute kit states a 0-100 PSI gauge.
Which kit here is certified lead-free for drinking water?
The Camco kit, with CSA lead-free certification to NSF/ANSI 372. The EVOULTES kit states lead-free brass certified to contain less than 0.25% lead, and the BUTTIKU kit states solid lead-free brass.
Which kits here state a warranty term?
The EVOULTES and HFVSLFA kits state a 1-year warranty. The Camco, BUTTIKU and Lettry kits state no term. In the more picks, the Gute, YTFSA and VIAIR kits state 1-year terms.
Related solar guides
See every RV and Van Life guide and all Emergency Prep guides.
More picks: RV water pump, RV tank flush valve and RV water heater maintenance.
