Diffuser Connector Block, 1/4" FNPT, HDPE Waterproof Paper and mildew

and mildew

Color: white or dark blue

The bottom edge is graduated in millimeters and numbered every 10th millimeter

User replaceable

HD collar with grommets

Diffuser Connector Block, 1/4" FNPT, HDPE Waterproof Paper and mildewProduct Code: DYCBB Connector block, with a 1 4 FPT inlet for use with line of air diffusers below. Four different styles, all self weighted: DYRD Rubber poly diffusers are for rough conditions. They have a 1 4 MPT inlet and wont freeze, break or crack. Use for tanks and on trucks and boats. DYCD Aluminum oxide diffusers are for general aeration: bubble size is 12 mm, and they have a support on each end that protects the tank or liner from the