Camco RV & Boat Pump Converter Winterizing Kit — Brass 3-Way Valve, 1/2"-14 NPT/NPSM Adapters for Antifreeze Circulation

The Camco Permanent Pump Converter Winterizing Kit is a durable in-line adapter that lets you use your RV or boat water pump to draw and circulate antifreeze through plumbing for reliable winter protection.

Preparing an RV or boat for cold weather is faster and cleaner when you can use the onboard pump to push antifreeze through pipes and fixtures. This kit provides the fittings and valve needed to hook a siphon tube to most 1/2"-14 NPT/NPSM water pumps, so antifreeze moves where it needs to go without manual pumping or multiple trips with a jug. Built for a one-time installation, it stays installed year-round, saving time during seasonal changeover.

How does this kit let my pump circulate antifreeze?

The kit adds a brass three-way valve and pump adapters that attach directly to compatible pump inlet/outlet ports, allowing a siphon tube to draw antifreeze from a container. Flip the valve and the pump draws antifreeze rather than fresh water.

• Includes brass 3-way valve to redirect flow
• Siphon tubing for continuous antifreeze feed
• Two pump adapter fittings for common 1/2"-14 NPT/NPSM ports
• Teflon tape for leak-resistant threads

Which pumps and systems is it compatible with?

This converter is designed to fit most water pumps that use 1/2"-14 NPT or NPSM threaded ports, common on many RV and marine fresh water systems. It also integrates with Camco by-pass hardware if you want to skip the water heater and reduce antifreeze use.

• Fits pumps with 1/2"-14 NPT/NPSM connections
• Works alongside Camco water heater by-pass kits (SKUs listed)
• Suitable for standard RV and marine PVC/PEX plumbing systems
• Not a pump — requires an existing water pump to operate

What hardware and maintenance does the kit require?

Installation is straightforward with a single adjustable wrench; the components are robust so they can remain installed year-round. Routine checks for tight connections and occasional inspection of the siphon tube will keep the system ready for winterizing tasks.

• One-time install with only an adjustable wrench needed
• Brass valve and metal fittings resist corrosion for longevity
• Keep Teflon tape at hand for thread resealing if disassembled
• Inspect tube and fittings annually before winter use

How does this kit save antifreeze and time during winterizing?

Using the onboard pump to draw antifreeze eliminates manual pumping and speeds the process, while pairing the converter with a water heater by-pass kit avoids filling the water heater tank, reducing the amount of antifreeze required. This lowers product cost and cleanup.

• Circulates antifreeze faster than manual methods
• By-pass option prevents unnecessary heater tank fill
• Permanent installation reduces annual setup time
• Compact kit minimizes storage and assembly steps

Who this is for: Owners of RVs and boats who already have a compatible 1/2"-14 NPT/NPSM water pump and want a durable, permanent solution for winterizing plumbing systems. It especially suits owners who prefer faster winter prep, minimal mess, and the option to pair with a Camco water heater by-pass to cut antifreeze use. Note: the water pump and antifreeze are not included.