Guardian Fiberglass Straight Hair and Lint Strainer 4 Inch Connections Flanged intended-usage_Residential And the ANSI flange bolt

And the ANSI flange bolt pattern allows for ease of installation and peace of mind

If pH is above 7

downstream of the filter and heater

A set of two inch slip fit CPVC water connections is standard with every digital pool and spa heater

Guardian Fiberglass Straight Hair and Lint Strainer 4 Inch Connections Flanged intended-usage_Residential And the ANSI flange boltThis Neptune Benson fiberglass in line pool strainer includes a standard flanged 4 Inch connection. The Guardian Series Hair and Lint Strainers are easy to install, effortless to operate and extremely durable. Compact enough to fit even the smallest mechanical rooms, they have a clear acrylic lid for viewing. Stainless steel hardware is included.