Door Frame Grout Pump 34-48' Doors - Pump
2021-7-8 · The GP-7 is a twin diaphragm hand-operated grout pump that is used specifically for grouting metal door frames. Having two 1' output hoses allows the contractor to fill both sides simultaneously. Requires two 1' minimum diameter holes be drilled in each side of the door frame and using the supplied hose support assembly holds the two hoses in place.
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