Guardian Fiberglass Reducing Hair and Lint Strainer 8 x 5 Inch Connections Flanged salt-friendly_null the most common dry product

the most common dry product is Sodium Bisulfate

This is a Taylor Midget Comparator pH (Long Range) 3

The actual cover will arrive larger to give you enough overlap around the entire pool for proper installation and use

Pentair TR100C-3/TR140C-3 Tandem Filter Piping 6 Inch - Single Filter Adder Kit - Schedule 40

Guardian Fiberglass Reducing Hair and Lint Strainer 8 x 5 Inch Connections Flanged salt-friendly_null the most common dry productThis Neptune Benson fiberglass in line pool strainer reduces flow with a 8 x 5 Inch standard flanged 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. Install a reducing strainer to eliminate additional reducers.