Perforated Ring w/Strainer Dome
The perforated ring is specially designed to hook onto the
strainer dome. It can be attached to every waterproof surface
with asphalt or mastic by means of the many conical holes in the
ring. It has three hooks to secure the strainer dome in place.
DUA 20 Basket Strainer for Dura
Flexible open weave basket designed to fit drain openings
3" to 5"
DUA 30 Basket Strainer for 6" Dura
This large drain has different characteristics and can be fitted
on residential and industrial roofs. An inside knurled ring
permits the strainer dome to be anchored.