Air stone 50mm ball shape to take 3mm hose 1 × £3.69
Check Valve to take 3mm hose see 2559 above 1 × £6.07
Extension tube rigid Black 15cm long. M/M threads, 1/2 inch BSP 1 × £4.73
Iris 2900 1 × £0.00
Silicone airline tubing CLEAR, internal bore 3mm. We will cut this to the continuous length you require (whole metres only - maximum reel length 100 metres). Price shown is per metre. Silicone tubing is recommended for use with air pumps. 1 × £0.88
N.B. Page 1 of the instruction leaflet incorrectly states that the telescopic pipe should be screwed into the pump outlet. This should of course refer to the Dual Control ‘T’ Piece ( part number 9).