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

New part incorporated on all idl heaters built after 9/20/04

Hayward SPX1091F Wide Mouth Face Plate Replacement for Hayward Automatic Skimmers

Hayward SP10851OM Auto-Skim In-Ground Pool Skimmer

- Test compatible with 3M™ E-A-Rfit™ Validation System

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.