Out Of Stock Best Fittings Fill Valve Upgrade For Air Arms T Bar Type - Valve Only
- Valve only – no fill coupler included
- Direct replacement for newer style Air Arms T Bar / T Slot valves
- Includes fill valve body, internal piston, spring and O-rings
- Made to Best Fittings specification
- Compatible with Best Fittings Quick Coupler Socket, Daystate Socket, Foster 12FS, 12FSS and 12MS Straight Thru Quick Snap Couplers
- Ideal for servicing or replacing a worn original valve assembly
The Best Fittings Fill Valve Upgrade for Air Arms T Bar Type – Valve Only is designed as a direct replacement for the newer style Air Arms T Bar / T Slot fill valve assembly, this valve offers a simple and effective way to refresh a worn or ageing setup.
Built to Best Fittings specification, this fill valve includes the fill valve body, internal piston, spring and O-rings, giving you the core components needed for a reliable replacement. Please note, this listing is for the valve only and is supplied without a fill coupler.
The connection is designed to be compatible with a range of popular fittings, including the Best Fittings Quick Coupler Socket, Daystate Socket, Foster 12FS, 12FSS and 12MS Straight Thru Quick Snap Couplers, making it a versatile option for users already running compatible charging equipment.
Ideal for replacing the new style Air Arms fill valve assembly, this upgrade helps restore dependable charging performance while maintaining compatibility with trusted Best Fittings accessories.
- Valve only – no fill coupler included
- Direct replacement for newer style Air Arms T Bar / T Slot valves
- Includes fill valve body, internal piston, spring and O-rings
- Made to Best Fittings specification
- Compatible with Best Fittings Quick Coupler Socket, Daystate Socket, Foster 12FS, 12FSS and 12MS Straight Thru Quick Snap Couplers
- Ideal for servicing or replacing a worn original valve assembly
- Best Fittings Fill Valve Upgrade For Air Arms T Bar Type - Valve Only
Will this fit my older style Air Arms air rifle?
No. This is exclusively a direct replacement for the newer "T Bar" or "T Slot" style fill valves found on modern S200, S400, S410, and S510 models. It will not fit older push-on styles.
Does this include the quick-release coupling for my hose?
No, this is the "Valve Only" listing. It contains just the replacement valve components for the rifle itself to fix a leak. The charging hose coupling must be purchased separately.
What quick-disconnect sockets will plug onto this valve?
Once installed, it connects directly to a standard Best Fittings Quick Coupler Socket, Daystate sockets, or standard Foster style (12FS) quick-snap couplers.
Why should I upgrade to this?
It is a cost-effective, high quality fix for a rifle that is losing pressure. If your original factory valve is leaking or letting grit in, this completely refreshes the internal seals and valve piston.
Can I install this myself at home?
Yes, but you must completely depressurise the air rifle's cylinder before unscrewing the old valve. If you aren't comfortable doing this safely, take it to your local RFD or gunsmith.
Delivery costs & estimated arrival
Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.
| Country | Up to 2kg | 2kg – 30kg | Estimated delivery | ||
|---|---|---|---|---|---|
| Order under €350 | Order €350 & over | Order under €350 | Order €350 & over | ||
| Austria | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Belgium | €8.95 | €14.95 | €14.95 | €14.95 | 4-6 working days |
| Bulgaria | €11.95 | €31.95 | €31.95 | €31.95 | 7-9 working days |
| Croatia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Cyprus | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Czechia | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Denmark | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Estonia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Finland | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| France | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Germany | €8.95 | €14.95 | €14.95 | €14.95 | 5-7 working days |
| Greece | €11.95 | €31.95 | €31.95 | €31.95 | 8-10 working days |
| Hungary | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Ireland | €6.95 | €6.95 | €8.95 | €8.95 | 2-4 working days |
| Italy | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Latvia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Lithuania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Luxembourg | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Malta | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Monaco | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Poland | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Romania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Slovakia | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Slovenia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Spain | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Sweden | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
Returns & withdrawal
Which option you use depends on why you are sending the item back.
Changed your mind?
You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.
If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.
Withdrawal from ContractFaulty, damaged or wrong item?
If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.
Full details of all our return options are on that page.
Returns pageDelivery prices are shown in euros and confirmed at checkout.

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