







🛠️ Upgrade your ride’s lifeline with precision-engineered check valves!
These Automotive Oil Line Spring & Vacuum Check Valves, made from durable PA66, offer high temperature and corrosion resistance. Designed with a unique pagoda card slot for airtight, slip-proof connections, they fit hoses with 4mm to 9mm inner diameters and operate reliably up to 200 kPa pressure. Compact and lightweight, they come in multiple sizes to suit various automotive needs.




| Material | PA66 |
| Brand | BBTUS |
| Item dimensions L x W x H | 1.57 x 0.71 x 0.71 inches |
| Exterior Finish | Plastic |
| Inlet Connection Size | 4.5 Millimeters |
| Outlet Connection Type | Slip |
| Maximum Operating Pressure | 2E+2 Kilopascal |
| Number of Ports | 2 |
| Outlet Connection Size | 0.71 Inches |
| Valve Type | Check Valve |
| Manufacturer | BBTUS |
| UPC | 191868794269 |
| Part Number | RYF02 |
| Item Weight | 0.704 ounces |
| Product Dimensions | 1.57 x 0.71 x 0.71 inches |
| Country of Origin | China |
| Item model number | GY2302 |
| Size | 3/16" |
| Color | Black |
| Item Package Quantity | 1 |
| Included Components | 2 check valve |
| Batteries Included? | No |
| Batteries Required? | No |
C**E
Air valves
Work perfect good quality. I use a lot of them. I will buy more. Thank you.
P**L
Nice check valves
I bought these to use in line with tubing which goes from the sink soap dispenser pump down into a container of dish soap which sits in the sink cabinet. Without the check valve I could get the tubing primed and it pumped a little but once I stopped using it the soap slowly dropped back down into the soap container. But with the check valve installed the soap stays in the tubing so that whenever I press the soap pump handle I get dish soap dispensed. It removed the difficult task of trying to fill the soap dispenser bottles which were screwed up under the sink. The bottles are no longer under the sink - just tubes running down into the larger dish soap bottle which is very easily replaced. I realize that this was not the original intent for these check valves but they work well for my use which I found from a kind soul who posted a video on YT..
V**E
works as expected
easy to use seems well made
M**N
check worked . plog and play
nice check not cheep junk
J**Y
Decent quality.
Seem decently sturdy, barbs were the right size. They work good as far as I can tell, I cannot speak to longevity as I did not use them long term.
M**Y
It is work ok
It is ok for sheerness, I know you will do much better, I hope more upgrades thanks
W**.
Fixed a vacumm loss on my Honda VT500C
My motorcycle need vacuum applied to the fuel petcock to keep running. It is a safety feature to prevent fuel flow when the engine is off. I was experiencing a loss in vacuum when going up hills under load. The bike would shut off when this happened. I would have to idle the bike for a minute and then I would be able to drive until I came up to another hill and the same thing would happen. Installing this valve corrected the issue! It saved me a lot of headaches. Thank you!
J**.
Just what I needed
I needed these for the kaboom chlorine dispenser to prevent the chlorine from back flowing to the fill valve. Needless to say, it did the job.
Trustpilot
3 days ago
4 days ago