Ducting Collar 4" - Galvanized Steel water-pumps-&-irrigation-supplies The blade is composed of

The blade is composed of durable D2 hardened steel and the sharp cross-cutting action improves efficiency

Shake well before use

Shallow grooves for easy cleaning

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Ducting Collar 4" - Galvanized Steel water-pumps-&-irrigation-supplies The blade is composed ofA steel ducting flange designed for use with applications like tumble dryers, bathroom fans, and range hoods. Crimped rims and raised lip on the duct opening for enhanced grip on ducting. Flat brim that lays flush against all flat surfaces and creates an airtight seal to keep particles out. Galvanized steel body that is corrosion resistant and can withstand high temperatures. Ducting Opening Diameter: 4 inches Collar Diameter: 7 inches Finish: Zinc