RV winterizing blow-out plugs connect an air source to a compatible city-water inlet so remaining water can be cleared from freshwater plumbing. The air fitting on the plug matters: a tire-style Schrader valve is different from a male compressor-hose quick-connect fitting. A manual antifreeze hand pump also attaches outside the RV, but performs a completely different job. Compare the exact Camco and JR Products part numbers below before choosing an adapter.
Know the three different ways into the water system
Tire-style Schrader air valve
Air-compressor quick connect
Manual antifreeze hand pump
Blow-out plugs by air fitting
| MPN | Air connection | Key difference |
|---|---|---|
| Camco 36133 | Schrader valve | Black plastic plug for compatible RV city-water inlet |
| Camco 36153 | Schrader valve | Brass body, tire-style valve; no air quick coupler |
| Camco 36143 | Male 1/4-inch compressor quick-connect | Requires the matching regulated air hose coupling |
| JR Products 03054 | Model-specific air fitting | Separate plastic pressure-retaining design; follow its own air hookup and pressure-release instructions |
| Camco 36003 / Valterra P23507VP | None; manual liquid pumps | Introduce non-toxic RV antifreeze, rather than compressed air |
The threaded side of a blow-out plug is intended for an appropriate city-water inlet; it does not establish that the air side matches every compressor or tire inflator. Inspect the actual valve, coupling and RV inlet before ordering.
Schrader-style blow-out plugs
Camco 36133 has a plastic body, while 36153 uses brass. Both expose a tire-style Schrader air valve for a compatible inflator connection. The material choice does not change the need for a regulated air supply or the RV manufacturer's winterizing procedure.
Compressor quick-connect and other blow-out fittings
Camco 36143 connects to a matching 1/4-inch air-hose quick coupler. JR Products 03054 is a different water-line blow-out fitting; its pressure-retaining behavior and pressure-release requirements should be checked separately rather than assumed identical to the Camco Schrader model.
When a manual antifreeze pump is the better match
Camco 36003 and Valterra P23507VP are manual hand-pump kits intended to introduce non-toxic RV winterizing antifreeze through a compatible outside water inlet. They are not compressor fittings, and neither draws fluid through the RV's existing onboard pump. Match the supplied connection and confirm the full winterizing procedure for the installed appliances.
Related water pump, bypass and winterizing references
Before winter storage, account for the water heater, holding tanks, toilets, outside shower and any model-specific appliances under their separate manufacturer instructions. NewRVParts products ship from supplier warehouses and are unavailable for in-person viewing or pickup.