Soft Flexible Silicone Bite Valve Set

Two identical silicone bite valves, each approx. 1.2 cm wide and 0.8 cm thick, weighing ~2 g. Constructed from soft, pliable, BPA-free silicone suitable for repeated oral contact. Designed specifically for Ello Cooper water bottles in all standard sizes (18 oz, 22 oz, 32 oz, 40 oz). The material resists cracking, hardening, or discolouration over time and maintains elasticity even after frequent cleaning. Installation is fully manual: remove the old valve by pressing upward from the lid’s underside, align the new valve centrally from inside the lid, and press until fully seated. Recommended replacement interval: every three months for users consuming ≥1 litre of water daily.