KEITH SPECIALTY STORE
6791 Route 119 N,
Marion Center, PA 
15759-7216 U.S.A.
phone: +1 724-397-8838  
orders: +1 800-705-8838
fax: +1 724-397-2228
hours (ET): 8:00a-6:00p Monday-Friday,
8:00a-4:00p Saturday

All items are brand new stock - not used - not remanufactured - not liquidation

brass compression fittings and valves

Compression fittings are used primarily for water on copper, vinyl, or poly (plastic) tubing.  They may be used for oil, but we recommend flare fittings instead.
Do not use these compression fittings for lines carrying pressurized gases.
Compression threads are a very different pitch from iron pipe size threads (or national pipe thread taper).  Use a male or female adapter to transition between them.
All compression fittings are listed by OD [outside diameter].  See chart for OD to ID comparison.

o.d. [outside diameter] to i.d. [inside diameter] tubing size conversion

tubing o.d.  tubing i.d.
1/4"1/8"
3/8"1/4"
1/2"3/8"
5/8"1/2"
Example:
Use 1/2" flare fittings
on 3/8" i.d. copper.
For small sizes, i.d. plus 1/8" equals o.d..

comp =
male threaded compression fitting.
mipt =
male iron-pipe-size thread fitting.
fipt =
female iron-pipe-size thread.

brass ferrules

Brass ferrules are used with copper or aluminum tubing.
 descriptionpricequantity to buy item#  
1/4" od compression ferrule$0.1204-004
3/8" od compression ferrule$0.1404-006
1/2" od compression ferrule$0.1804-008
5/8" od compression ferrule$0.2804-010

Nylon ferrules

Nylon [plastic] ferrules are used with plastic/poly tubing.
 descriptionpricequantity to buy item#  
1/4" od nylon compression ferrule$0.1504-012
3/8" od nylon compression ferrule$0.1504-014

brass compression nuts (hub x female compression thread)

 descriptionpricequantity to buy item#  
1/4" od compression nut$0.2904-034
3/8" od compression nut$0.3004-036
3/8" od chrome compression nut$0.9704-705
1/2" od compression nut$0.4504-038
5/8" od compression nut$0.6404-040

male thread adapters (male threaded compression fitting x mipt)

 descriptionpricequantity to buy item#  
1/4" od compression x 1/8 male$0.6904-105
1/4" od compression x 1/4 male$0.8504-106
3/8" od compression x 1/8 male$0.9904-125
3/8" od compression x 1/4 male$1.0504-126
3/8" od compression x 3/8 male$1.2504-127
3/8" od chrome comp. x 3/8 male$1.4904-710
3/8" od compression x 1/2 male$2.0904-128
3/8" od chrome comp. x 1/2 male$1.9904-715
1/2" od compression x 1/4 male$1.4504-145
1/2" od compression x 3/8 male$1.5004-146
1/2" od compression x 1/2 male$1.9904-147
5/8" od compression x 3/8 male$3.2904-165
5/8" od compression x 1/2 male$2.4004-166
7/8" od compression x 3/4 male 7/8 od compression x 3/4$4.7904-185

female thread adapters (male threaded compression fitting x fipt)

 descriptionpricequantity to buy item#  
3/8" od compression x 1/4 female$1.2504-225
3/8" od compression x 3/8 female$1.1504-226
3/8" od compression x 1/2 female$1.3504-227
3/8" od chrome comp. x 1/2 female$1.8904-725
1/2" od compression x 1/2 female$2.2504-246
5/8" od compression x 1/2 female$2.2504-247

couplings and reducer couplings [unions, swivels] (male threaded compression fittings)

 descriptionpricequantity to buy item#  
1/4" od compression coupling$0.9204-305
3/8" od compression coupling$1.3504-307
1/2" od compression coupling$2.0904-309
1/2" x 3/8" od compression coupling$1.8004-325
5/8" od compression coupling$3.3904-311
5/8" x 3/8" od compression coupling$2.2004-330
7/8" od compression coupling$5.5904-313

90 degree ells [elbows] (male threaded compression fittings)

 descriptionpricequantity to buy item#  
1/2" od compression 90 ell$2.7504-409
3/8" od compression 90 ell$1.9004-407
5/8" od compression 90 ell$5.1904-411

90 degree ells [elbows] (male threaded compression fitting x mipt)

 descriptionpricequantity to buy item#  
1/4" od compression x 1/8 male ell$0.9004-425
3/8" od compression x 1/4 male ell$1.3004-445
3/8" od compression x 3/8 male ell$1.5504-446

tees (male threaded compression fittings)

 descriptionpricequantity to buy item#  
1/4" od compression tee$1.6504-505
3/8" od compression tee$2.3504-507
1/2" od compression tee$3.9004-509
5/8" od compression tee$7.3004-511

sweat adapter (male threaded compression fitting x copper sweat hub)

 descriptionpricequantity to buy item#  
3/8" od compression x 1/2 copper$1.9004-625
3/8" od chrome comp. x 1/2 copper$2.0904-730

valves (male threaded compression fittings)

 descriptionpricequantity to buy item#  
1/4" od compression shut off valve$3.6904-805
3/8" od compression shut off valve$8.1904-807

valves (male threaded compression fitting x CPVC female hub)

 descriptionpricequantity to buy item#  
1/2" cpvc x 3/8 od compression chrome angle valve$5.9017-250
1/2" cpvc x 3/8 od compression chrome straight ball valve$5.9017-251
A cPVC valve is used as a shut off when transitioning from CPVC to 3/8" supply line.
More valves are listed on supplies and traps.

transitions to CPVC with union (cpvc x male compression hub)

 descriptionpricequantity to buy item#  
1/2" cpvc x 5/8 od compression union$4.9517-151
3/4" cpvc x 7/8 od compression union$8.8017-153

braided stainless steel supply lines (3/8" female compression thread [nut] x 1/2" fipt)

 descriptionpricequantity to buy item#  
12" flexible stainless steel faucet supply$2.8525-060
20" flexible stainless steel faucet supply$3.9525-062
30" flexible stainless steel faucet supply$6.9925-064

braided stainless steel supply lines with ell union (3/8" female compression thread [nut] x 1/2" fipt)

 descriptionpricequantity to buy item#  
48" flexible stainless steel dishwasher supply with 3/8" od female compression ends$12.8525-080

braided stainless steel supply lines (3/8" female compression thread [nut] x toilet valve female thread [nut])

 descriptionpricequantity to buy item#  
9" flexible stainless steel closet supply$2.5525-070
12" flexible stainless steel closet supply$3.2025-072
16" flexible stainless steel closet supply$3.4525-074