AquaStar Pool Products SKR105 Skimmer, AquaStar Flow Star, Dark GrayFlow Star Skimmer by Aquastar Pool Products FEATURES: Adjustable collar New weir clip lock secures the clips in the weir door Self-contained gunite grip, water stop on the face plate to prevent water leaks Large self-contained basket with lock-in feature (will not float) Underwater dampers on the face plate for noise reduction on weir plate - especially on windy days Super strong engineered polymer upper housing Extra heavy duty PVC lower unit (no transitional glue required) 2-1/2" spigot and 2" slip plumbing connections (outside skimmer) 2" threads for pressure testing (inside skimmer) Built-in overflow or fill line knock out Upper housing has pre-cut rebar cutouts with pre-drilled holes for tie wire Skimmer lid and collar are G154 UV tested NSF 50 approved for commercial use, 25 GPM min., 55 GPM max. - approved for residential use up to 100 GPM