Boltigen RV Winterizing Kit — 3-Way Bypass Valve with 1/2" NPT Barb Adapter, 59" Kink-Resistant Hose

Boltigen’s RV Winterizing Kit is a complete antifreeze bypass system that includes a 3-way valve, 59" flexible hose, brass 1/2" barb adapter and installation accessories to simplify seasonal RV plumbing protection.

When temperatures drop, protecting your RV’s potable water lines and fixtures is essential. This kit is designed to let you route non-toxic RV antifreeze through selected lines while bypassing the water heater, using a reliable 1/2" NPT valve and a kink-resistant flexible hose. Everything needed for a standard RV bypass hookup is supplied, so you can prepare your camper or motorhome for cold storage with fewer parts to track down.

How does the 3-way bypass valve work for RV winterizing?

The three-way valve redirects flow so antifreeze travels only through the plumbing you choose while leaving the water heater isolated. Turning the valve changes the path between normal water supply and bypass mode, making the process faster and reducing antifreeze waste. The included 1/2" NPT threading matches many RV plumbing ports for a secure connection.

• 3-way valve performs supply, bypass, and closed positions for clear routing.
• 1/2" NPT threading for common RV plumbing ports.
• Brass 1/2" barb fits flexible hose for leak-resistant junctions.
• PTFE tape and sealing ring included for a watertight seal.

What makes the hose and fittings easier to use than standard parts?

The kit’s 59" flexible hose is engineered to resist flattening and kinks so antifreeze flows evenly during winterization. That flexibility helps reach difficult routing paths inside cabinets and tight spaces without collapsing. Two hose clamps and the brass barb adapter give a secure mechanical connection that holds under pressure during antifreeze circulation.

• 59" hose length for extended reach and routing versatility.
• Improved wall construction to reduce kinking and flow restriction.
• Two stainless hose clamps for firm, vibration-resistant connections.
• Brass barb adapter for durable, corrosion-resistant fittings.

How do I install the Boltigen kit in my RV plumbing system?

Installation typically involves removing an existing plug or fitting at the water heater bypass port, threading in the 1/2" NPT valve, attaching the brass barb and routing the flexible hose into the supply side. Seal the threads with the supplied PTFE tape and use the hose clamps to secure the hose to the barb. Turn the valve to bypass mode and pump antifreeze through faucets and fixtures until the system is protected.

• Wrap PTFE tape supplied on NPT threads before tightening.
• Attach hose to barb and clamp firmly using included clamps.
• Switch valve to bypass position before circulating antifreeze.
• Follow your RV manufacturer’s winterizing directions for fixture-by-fixture protection.

Can this kit be used for routine plumbing maintenance as well as winterizing?

Yes — the bypass valve and hose also help route cleaning solutions or isolate sections of plumbing during repairs. Using a dedicated valve reduces the need to dismantle fittings when you flush lines or replace components. Keep in mind materials compatibility: use only non-corrosive fluids and follow product safety guidance for any cleaning agents.

• Useful for circulating cleaning solutions or isolating lines for repairs.
• Reduces disassembly when accessing valve or fixture assemblies.
• Brass and reinforced hose for repeated seasonal use.
• Includes basic sealing accessories to simplify interim installations.

Who is this for: RV owners, seasonal travelers and service technicians who need a compact, dependable bypass kit to winterize or maintain plumbing in travel trailers, campers and motorhomes. Boltigen’s kit suits DIYers who prefer a single, ready-to-install set of parts that minimizes extra trips to a hardware store and speeds up preparation before cold-weather storage.