ClassicBond® Internal Drain 68mm Kit Classic Bond Sale! from £37.42 £37.42 (inc VAT) £31.18 (ex VAT) Qty. Add to Basket This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Delivery: Current Delivery: 2 - 3 days Description: Complete Internal Water Drain Kit. Internal Drain 68mm Kit contains: 1 x Internal Drain 68mm 1x 9" Uncured Flashing Tape 300mm 1x 250ml EPDM Primer 1x Leaf Grate