Hayward SP10821 SkimMaster In-Ground Pool Skimmer, Square ducting some as small as 20

some as small as 20 microns (an average grain of beach sand is 1

paired with a hand pad block

Hayward SP10851OM Auto-Skim In-Ground Pool Skimmer

Very Fine Grade Abrasive for Refined Finishes (03064)

Back D-Ring

Hayward SP10821 SkimMaster In-Ground Pool Skimmer, Square ducting some as small as 20Hayward SP10821 SkimMaster In Ground Pool Skimmer, Square Cover collar allowing 1 1 2 inch vertical adjustment Snap in weir that adjusts automatically to 4 1 2 inch variation in water level Optional float by pass valve Stackable notched extension collar allows infinite vertical adjustment All SP1080 Series Skimmers are available with float valve and equalizer kit to meet specific NSF commercial requirements.