Raypak Tube Bundle [406A/407A Copper/Poly] (010062F) sgsinstruments The Waterco union adapter is

The Waterco union adapter is designed for compatible plumbing systems that need a 3 inch female threaded connection on one side and a 3 inch slip connection on the other

A lock ring like this is useful because it helps secure related components within the assembly

the filter can lose the dependable support it should provide during operation

Confirm model compatibility before ordering

Raypak Tube Bundle [406A/407A Copper/Poly] (010062F) sgsinstruments The Waterco union adapter isThe Raypak Tube Bundle [406A 407A Copper Poly] is a replacement heat exchanger tube bundle kit for compatible Raypak 406A 407A pool and spa heater systems. The tube bundle is a central heat transfer component, allowing water to move through the heater while absorbing heat from the combustion process or heating assembly. This copper poly kit is typically used when the existing tube bundle is leaking, scaled, damaged, or no longer transferring heat