Simpool Standard Skimmer Plug for Hayward SP1090, 1091LX, Square, Aboveground | AGSD-H Spa Flush Before installing the new manifold

Before installing the new manifold assembly

000 gallons of water

covering both Natural Gas and Liquid Propane models across all BTU ratings

Before seating the O-ring

DE filters using this partial grid require 7 full grids + 1 partial grid for a complete re-grid service

Simpool Standard Skimmer Plug for Hayward SP1090, 1091LX, Square, Aboveground | AGSD-H Spa Flush Before installing the new manifoldSkimmer Plug for Standard A G Skimmer, Model #: AGSD H Fits skimmer openings: 5 7 8" W x 5 5 8" H. **See below for size chart, more options! Features and Benefits: Fits skimmer models Hayward SP1090, SP1091LX, Poolstyle PS001, ProLine Standard, Seasonmaster Standard and Swimline Hydrotools Allows for the winterizing of pools without any draining Blocks water from entering the skimmer Prevents freeze damage during the cold winter months Also known as: