SYLVAN
SYLVAN | UNIVERSAL SPRING LOADED WEIRS | 240061 LENGTH: 7 5/8" WIDTH : 5 1/4" THICKNESS: 1 1/8" THIS IS A SPRING LOADED WEIR WHICH IS COMPRESSED. INSIDE THE WEIR A PLASTIC LINE HOLDS THE SPRING. DO NOT PULL PLASTIC LINE UNTIL WEIR IS IN PLACE...
