Vinyl Reinforced Clear Tubing Size:TVR40 - 1/4" I.D The diffusers are set in

The diffusers are set in enamel coated aluminum frames (except the smallest unit)

These feeder come standard with stainless steel clocks

Recommended dosage: 1 tsp (5 mL) per 20 gal (76 L)

Choose from aluminum or nylon 6/glass composite (plastic) base

Vinyl Reinforced Clear Tubing Size:TVR40 - 1/4" I.D The diffusers are set inDescription Synthetic, fiber reinforced, food grade tubing preferred for its kink resistance, high pressure rating and flexibility. Tough, flexible, polyvinyl tubing has excellent clarity, is odorless and non toxic. Temperature range 48 to 160F. Note: Vinyl tubing is not recommended for use with pure oxygen or ozone. Comes is 50' coil. Specs Sizing Inside Diameter Outside Diameter Wall Coil Max Pressure at 90oF TVR40 1 4" 0. 380" 0. 060" 50' 120 psi