What size aleen wrench do i need to remove set screw from a pfister sedgwick kitchen faucet handle ?

SOURCE: price pfister faucet handle drops and turns off.

Re the 'falling handle' issue, I think you misunderstood the problem, jgwhomeequip. Unfortunately for me I bought *two* similar Price Pfister faucets and both had the same problem - the water wouldn't stay on and the handle just wouldn't stay up.
I took mine apart looking for something to adjust, fruitlessly. Put it back together and have lived with it like that for ~2 years.

Finally I decided to not be a knucklehead any longer and call the manufacturer. Once I got through to their rep (on a Saturday no less!) she helped me identify the model I had (a 533-50SS, just FYI), and asked me 'what finish'? I replied 'stainless steel' and she promptly replied, 'I'm going to mail you out new lighter handles to replace the ones you have'.

Brilliant! Gold star for PP for standing behind their product well past the warranty for what was apparently a common problem. Replacing the handle will take about 10 seconds per faucet.

I only wish I had got of my a$$ and called them 2 years ago.

1-800-PFAUCET (1-800-732-8238)

Consumer Service Department:
7:30am to 4:00pm PST, Mon-Sat
1-800-PFAUCET (1-800-732-8238)
Fax: 1-800-713-7080

Hope that's helpful to somebody.

SOURCE: Kitchen Faucet Leak

The stem and washers inside the faucet need to be replaced.

If you Do it yourself the parts typically will cost you less than 20 bucks.

Most plumbers will charge 75 to 100 for this relatively simple Job.

You can order parts directly from the manufacturer, or from a local plumbing supply house.
The faucet may still be under warranty and the parts would be free. Here is ther number for Price pfister.
1-800-PFAUCET (1-800-732-8238)

Testimonial: "As you suggested, the faucet was under warranty and Price Pfister is sending me some parts at no costs. Hopefully, the parts will resolve the issue."

SOURCE: allen head wrench size

try 1/8

SOURCE: base of faucet leaks- cannot remove set screw at

if you are having trouble removing the set screw make sure you are using the correct size allen wrench and confirm that it is a allen screw and not a trox screw. After doing this try tighten the screw slightly before loosening it. This should break it loose.

SOURCE: Removing the handle on Meon single handle pull out

Try using a 7/64. I think that is the right size.Thank you.