PEM 6224 Coarse Suction Strainer

PEM 6224A Coarse Suction Strainer is made of perforated stainless steel, cast bronze base and cover, and brass.
stainless steel fitted Suction area:  1335 cm2 \ 207 square inches 
Orifice size: 4.5mm \ 0.187"
Suggest maximum flow: 300 L/min \ 80 USGPM with 500mm \ 20" of water over fitting.

PEM 6224B Coarse Suction Strainer is made of 41% open perforated stainless steel with cast bronze base and cover, brass and stainless steel fitted. 
Suction area: 1335 cm2 \ 207 square inches
Orifice size: 1.5mm \ appro. 0.0625"
Suggest maximum flow : 95 L/min \ 25 USGPM with 500mm \ 20" of water over fitting.