A. INSPECTION OF FIRE EXTINGUISHERS (price to include cost of valve stems, O-rings, tags, pin pulls, collars, seals, bulls-eye flag seals, etc., and all other parts, components and services required as part of this inspection) As needed, price per unit to check, inspect and re-tag existing fire extinguishers of various county facilities and vehicles. Note: Work to be done per NFPA 10 standards, current edition. B. HYDRO TESTING & REFILLING OF FIRE EXTINGUISHERS (price to include cost of refilling and current year hydro inspection tag, valve stems, O-rings, tags, pin pulls, collars, seals, bulls-eye flag seals, etc., and all other parts, components and services required as part of this hydro test and refill) As needed, all pressurized fire extinguishers shall be taken out of service and pressure tested. The testing agency shall leave a "loaner" in place while the testing is being completed at no cost to the County and the County Park Commission.