SRD, SRM, SRR Square to Round Adapters

Accessories

The SRD, SRM, and SRR models are the perfect accessories for fitting round flex or rigid ducts to the square neck of the grilles or diffusers. These adapters allow you to seamlessly attach the different components in the ductwork and can be installed in most grilles.

Compatibility of the 3 models—SRM: M-Series and perforated diffusers with square necks, SRR: RC/ARC series, SRD: all grilles and registers
Constructed using galvanized steel
All models are available in Mill (ML) standard finish

SRD, SRM, SRR Square to Round Adapters

Product Application

Connect your square neck grilles and diffusers to round ducts directly with our SRD, SRM, and SRR Square to Round Adapters. It is a cost-effective solution that offers an easy transition from a square or rectangular neck to round flex or rigid ducts. The three models in the series provide versatility in application and are designed to suit various grilles, registers, and diffusers based on your requirements.

Features

The product is shipped loose for field installation.
SRM’s base dimension is 1/2", and cannot be used in conjunction with a square neck mounted opposed blade damper.
SRM is available for M-Series and Perforated Diffusers with square necks.

Dimensions of the mouth for SRD, SRR and SRM respectively are 1-1/4", 2" and 1-1/4", while dimensions of the base are 3-1/4", 3-3/8" and 1/2" respectively.
SRR is available for RC/ARC series only.
SRD is designed for Square to Round for GRDs.