Phonak and Unitron CeruShield Wax Guards (packs of 8 ) – £3.95 for a pack of 8 wax guards. Discounts available when purchasing multiple packs as below, free shipping is standard. Suitable ONLY for Phonak Audeo M, P and L RIC hearing aids (Marvel, Paradise and Lumity), Unitron Discover, Discover Next, Blu and Vivante RIC hearing aids, also Specsavers Advance x39, x70 and x71 (x representing the technology level ie a 3 digit number ending in 39, 70 or 71)  that are using SDS4 receivers wires. Anything older than Marvel (using SDS 3 receiver wires), or the hearing aids mentioned in the previous paragraph but with SDS 5 receiver wires, and the newest Infinio range (using SDS 6 receiver wires) please order Cerustops which are NOT INTERCHANGEABLE. The best way to work out what to order is if you have been using wax guards with a round black disc dispenser (like the product image) then you MUST carry on using Cerushield. If you have been using cerustop wax guards that comprise of 8 black sticks in a grey or white dispenser then order Cerustops. If still unsure please ask. 2 Packs = 10% Discount 3 Packs = 15% Discount 4 Packs = 20% Discount For a useful videos of how to replace this wax guard click here Please note – we only ship to UK postal addresses.