Waterco Opal XL C225 Filter Cartridge Element - 225 Square Feet block-type_Standard Racing The distance between the front

The distance between the front (pool) rail and back (anchor) rail is 30 inches

This pool depth marker states 4

Explorer E30

And it can be installed next to the pump by using an optional support base (sold separately)

This is a 4 foot x 8 foot air pillow made with standard 16 gauge vinyl

Waterco Opal XL C225 Filter Cartridge Element - 225 Square Feet block-type_Standard Racing The distance between the frontThe Watero Filter Cartridge replacement has a media filtration area of 225 square feet and is designed for the Opal XL 225 Cartridge Filters. The cartridge is 30 microns. Waterco filter cartridge replacements are made by Pleatco which feature a unique Pleatco Point Bonded Filtration Fabric which ensures superior dirt collection among many other features. These filters allow you to have extended time between cleaning and servicing, less frequent