The road to success is full of detours. Some of the detours are paved in 75 durometer Buna-n.

Haha! Yes they are! It would sure be sturdy and fuel resistant!!

As mentioned above, one of the things that makes the Nitrophyl work is the fact that if done correctly, it skins over on the outside to produce a protective and non absorptive shell.

"NITROPHYL material is transformed from a solid material to a hard, cellular structure by a two-step molding process. The outside layers, which are in contact with the hot surfaces of the cavity, produce a hard, smooth outer surface. The inside acquires a closed-cell structure. This distinctly different shell or "skin" protects the cell structure and adds to the mechanical strength of the part. NITROPHYL floats are also abrasion-resistant and capable of reproducing cavity details with sharp resolution in a wide range of sizes."

NITROPHYL Design Guide

I'm no plastics guy and I don't know if Rogers Corp sells the Nitrophyl compound in a resinous form, but it does appear they currently hold the trademark on the Nitrophyl name. I didn't look deeply enough to determine if they want to make their money selling resin or selling floats, (or both). I also didn't dig to see if there were other "generic" compounds of foamed NBR available from other sources or if Rogers Corp had a stranglehold on the technology.

Wonder if a small captive screw or something could be added to the steel tang on the floats to allow adjustment. Even with a sight glass, it takes dexterity, patience and luck to get them adjusted right.

We always check the fuel level with a clear hose attached to a hollow screw that is screwed into the bowl drain spot. Then stand the hose up beside the bowl and turn the fuel pump on.

As far as the floats go, they're, in lamen's terms, just like a foam rubber surround of a speaker. They're a block of airy foam that has a layer of rubber glaze coating them. What's the interest in these? I can have the tooling made here and start making them, just needa know what normal replacement cost is for them.

MSA lists part #11-2501 (float, 70-72) for $17, not available.

Really doesn't matter what floats are listed for price wise. If someone goes to the trouble of making them, then charging what it takes to stay on the black side of the line is in line.

NISSAN has recently gone nuts with prices on fuel nozzles for example.....

Yeah I was mainly just wondering for labor cost.....my guys' time is worth alot more than my spare time, so if something is to be done and will sell alot for a good enough price, I'll put one of them on it.....if not alot will sell and price will be low, I'll tool around on it in my spare time.