Size: 65 mm OD x 1000 mm long Membrane: MOC : EPDM compound ( or) Silicone Slit size: normally 1 mm ( 0.6 - 2 mm) No of slits / mtr: 8, 600 Nos Hub: Polypropylene with ¾ â BSP inlet Support: R PVC pipe Clamps: SS 304 stepless clamps Air flow: Recommended: 8.5 to 10 cum/ hr Pressure: Recommended: upto 1.0 kg/ cm2 SOTE: 3 mtr : 5 to 6.5% per mtr submergence