The Fillcheck (fill nipple) assembly on the HPA bottle is an item that will require periodic replacement. This is the most common source of leakage on the HPA bottles. If yours needs replacing, either due to leakage or damage to the external metal, you should replace the entire assembly. The new replacement Fillcheck upgrades all previous versions to the latest OEM type. This latest version is more compact and works with all HPA bottles. Always replace the complete assembly.
The new OEM Fillcheck assembly has special black HPA thread sealant tape pre-applied. Do not use additional sealant or Teflon tape.The Fillcheck replacement procedure should only be performed by certified PepperBall armorers. This is the only PepperBall-authorized repair for HPA bottles.
Click below to download a Fillcheck Assembly replacement step-by-step instructional PDF file.Fillcheck Assembly Replacement Instructions