Seamax Universal Air Hose Kit for Electric Air Pump, Suitable for Commercial Boat and NRS SUP with Leafield C7 and D7 Valve

I recently bought an NRS inflatable SUP and didn't realize they take Leafield C7/D7 ports; not your standard inflatable SUP input. This is the answer! NRS does sell an adapter but it does not fit well on standard inflatable pump ports. I tried electrical tape, apoxy paste, and both did not work well. This hose is the answer!!!

Finally have a pump that will get the SUP to 15 psi without a problem. It does take about 15 minutes to get to pressure. FYI the pump runs faster with the vehicle running when it hits the second stage.

Used with generic Chinese rechargeable SUP pump and my new NRS Kuda inflatable fishing kayak. Hose a bit stiff, but I'll live. As others have mentioned, this is kind of spendy for what you get.

It is unusable garbage because of the fundamental design flaw. If you use this hose, it will take twice as long to inflate SUP compared to generic Leafield C7 adapter. The hose is made from quality materials and connects/disconnects easily. BUT !!! ... To my great surprise and disappointment, after several years of using it I've discovered that this has a fundamental flaw, which makes it unsuitable. I forgot my hose at home and used my friends' cheap hose with a generic adapter - and have noticed that worked twice as fast. After investigation, I've figured out that the source of the problem was this Seamax hose :-(. Its connector (the first picture I've uploaded) is for MANUAL pumps. With it, manual pump inflates SUP with the valve closed (which is the only way to do it with manual pumps to prevent backflow). For ELECTRIC pumps - the valve should be depressed during inflation, I.e. the adapter needs to be with a pin in the middle to depress the valve (the second picture). To put it in another words, the hose they sell for premium price of $30 will make inflation take twice as long and electric pump work extra hard since it has to overcome pressure of closed valve. Pretty unbelievable that they have been selling this garbage for years to unsuspected buyers. Apparently, the designers of this hose have no clue how Leafield C7 adapter works.

a little stiff. probably cause its brand new. works well for my saturn boat

The adapter work with my electric pump Serene life

My gamble paid off and this thing actually fit my shark outdoor master air pump. C7 leafield seems harder to come by?? anyway...this fits and now works well to inflate my raft...by the way...BUY THE SHARK PUMP AND SKIP THE SEASMASTER.

Works well as it has the correct c7 adapter, however I think it was a bit overpriced for what you get. Cheap plastic hose with a fixed c7 adapter but works fine

Excellent tuyau pour adaptateur leafield C7

I have an older paddle board, so I 100% needed this for the electronic air pump.