Leak Proof Wall Boxes SWBL-8, DWBL-8, TWBL-8

Leak-Proof Wall Boxes

SWBL-8, DWBL-8, TWBL-8 are all models for single, double and triple leak proof wall boxes. Leak proof wall boxes have an extruded aluminum grille (optional for all sizes). TEST STANDARD: Cyclic Static Test ASTM E547-00, Tested @ 400 Pa.