Swimming pool rectangular observation windows are a valuable aid in swimming and diving instruction.These windows set flush in the pool wall with no projections and can be installed in any concrete pool, tile finish or plainconcrete. Glazing is available as a lamination consisting of three plies of 3/8" thick tempered glass with interfaces of clear plastic and as a single sheet of Plexiglas 1¼" thick. Frame construction is entirely made up
of stainless steel. All windows are pressure tested and ship factory assembled. A template for setting anchors is furnished.