Gardena Extension Set for Below and Above Ground Drip Irrigation Pipe 50m - Gardena 1395-20 Ref: GRD1395-20 Extension Set for Art. No. 1389. With Connector and End-piece. Length 50 m. Drip Head spacing 30 cm. Water release per head 1.6 l/h. Pipe internal diameter 13.7 mm. Max. Drip Irrigation Pipe length 200 m (when Master Unit fitted in the middle). Price: £56.69 (Including VAT at 17.5%)