How does it work? we are able to fill your HPA bottles at all our stores we fill both 200 bar (3000 psi) and 300 bar (4500 psi) - in Ostrava only 200 bar CO2 bottles are filled only in Prague for safety reasons we cannot send filled bottles by any courier service Which bottles we do not fill? uncertified bottles bottles with expired pressure test damaged bottles (we reserve the right to assess the condition of the bottle) What is a hydrotest and how do I know if it is valid? each bottle has a valid hydrotest for 5 years from manufacture the date of manufacture is always indicated on the bottle the hydrotest is renewable after expiry by performing a pressure test Please note: Composite bottles (sometimes aluminum as well) may have a manufacturer's lifetime (stated on the bottle as Final Date) Where can I renew my hydrotest? You can take the bottle to us and we will take care of it! we can exchange aluminum bottles for the same newly hydrotested bottles that are similarly worn out (we will of course replace the regulator with yours) if you also want your aluminium bottle back, the hydrotest will take about 1 month (call us to check the time) hydrotest of composite bottles takes about 1-2 months (in case of larger number or extra charge about 2 weeks) the hydrotest includes a complete service of the regulator (analysis, cleaning, resealing and pressure adjustment if necessary) Price list: Filling HPA bottles (standard size) 40 CZK / piece Filling of Scuba Tanks 10 CZK / 1L CO2 bottle filling 60 CZK Hydrotest of HPA aluminium bottles (including regulator maintenance) 450 CZK* Hydrotest of HPA composite bottles (including regulator maintenance) 1000 CZK* Repair of air regulators 100 - 300 CZK Replacement of fuse, o-rings, pressure gauge 50 CZK* * The price does not include the cost of parts to be used in case of necessary repair