Product Description Antelco Double Barbed 18mm End Plug 20mm OD Pipe The Double Barb (DB) range of purpose designed quality acetal fittings provides high retention in low pressure poly tubing for long-term reliability of connections. The DB range can be confidently installed without clamps when matched to quality low pressure poly tubing with corresponding dimensions (refer to the tubing manufacturer for confirmation of suitability or test under field conditions). Operating pressures up to 300 kPa. Size options: 18 mm – Suits nominal 20mm OD. tube Click for Product Brochure