Twistee will allow you to fit couplings and connections into concrete , clay and twinwall pipes that measure a minimum o/d of 300mm these size pipes are normally mains sewer pipes situated under the main roads .
fitts pipe work 300mm to 1500mm and gives a secure connection to the mains withe dn150 twistee coupling.
you will need a core drill size of 186mm to make the hole for connection .
if you are connecting with 160mm pipe to mains you will also require the correct bush with your twistee these are an extra = £22.00 PLUS VAT .
IF YOU ARE CONNECTING TO 150 ULTRA RIB THE BUSH IS £23.80 plus vat .
please call for any help .