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M&M 645R61066 Register Box With Tab and Snap Rail Flange, 10 in L x 6 in W, Steel

No 645R6 register boxes have adjustable 45 deg collars and tabs. The registers boxes are lined with 1 1/2 in R-6 duct liner.

Part #137895

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M&M 645R61066 Register Box With Tab and Snap Rail Flange, 10 in L x 6 in W, Steel

No 645R6 register boxes have adjustable 45 deg collars and tabs. The registers boxes are lined with 1 1/2 in R-6 duct liner.

Part #137895