CALL TOLL FREE: 877.826.3828 ROLOK PRODUCTS 4800 N. Channel Ave. Portland, OR 97217 ROLOK Products is a leading Northwest supplier of sheet metal products from HVAC and cleanroom ductwork to blow pipe and heavy gauge grease duct. We build to your specifications and time line in order to assist in th...

CALL TOLL FREE: 877.826.3828 ROLOK PRODUCTS 4800 N. Channel Ave. Portland, OR 97217 Sheet Metal Product Applications Process exhaust systems - stainless steel, galvanized, black iron, and aluminum Cleanroom air systems Complete HVAC Custom sheet metal fabrication - custom enclosures, support stands,...

CALL TOLL FREE: 877.826.3828 ROLOK PRODUCTS 4800 N. Channel Ave. Portland, OR 97217 Return to Order Page ROLOKOUSTIC Double Wall Fittings Sound Absorption Coefficients for Fiberglass Liner Thickness Sound Absorption Coefficient at Frequency (Cycles per Sound) Permacoate Linacoustic Standard (inches)...

CALL TOLL FREE: 877.826.3828 ROLOK PRODUCTS 4800 N. Channel Ave. Portland, OR 97217 ROLOK Products is a leading Northwest supplier of sheet metal products from HVAC and cleanroom ductwork to blow pipe and heavy gauge grease duct. We build to your specifications and time line in order to assist in th...

CALL TOLL FREE: 877.826.3828 ROLOK PRODUCTS 4800 N. Channel Ave. Portland, OR 97217 Return to Order Page Duct Construction Standards: 4" Water Gauge Material: Galvanized Sealer: All Joints & Seams Seams: Pittsburgh D Drive (24 ga.) SD Standing Drive (22 ga.) S S-lock (24 ga.) SS Standing S-lock ...