PermaGuard Solid Vinyl Rectangular Safety Pool Cover 16 x 30 Feet With Drain filter-length_20 3/4 inches but they help cut pool

but they help cut pool maintenance chores down to size

This is a package of 50 Pentair/Rainbow Phenol Red Tablets

This is a PVC Reducing Tee Fitting with two slip (socket) fitting connections and one FIPT (female) connection that measure 3 x 3 x 1/2 Inch

They are used in the Rainbow kits by Pentair for cyanuric acid tests

PermaGuard Solid Vinyl Rectangular Safety Pool Cover 16 x 30 Feet With Drain filter-length_20 3/4 inches but they help cut poolThis Meyco pool safety cover is designed to fit a Rectangular 16 x 30 Foot Pool. The actual cover will arrive larger to give you enough overlap around the entire pool for proper installation and use. Meyco's PermaGuard Solid Safety Covers feature an ultra strong and ultra light vinyl material; almost 1 3 lighter than other vinyl materials. The PermaGuard material is designed to form a more effective barrier to prevent surface water and foreign debris