Maxpro South, Inc.
Maxpro South, Inc.
92 Wilson Rd,
Humble, TX 77338
Toll Free: 800.203.8063
Phone: 281.351.8880
Fax: 281.351.8883
Email: sales@maxprosouth.com
Web Address: www.maxprosouth.com
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Couplings are female to female fittings that allow the joining of two different sizes and/or types of connections for a variety of size combinations. All couplings and adapters are made of 316 cold worked stainless steel material; other materials are available upon request. Glands and collars are included with each female tube connection.
Coupling (Female to Female)
Unit of Measure
1 

Item #

Female Connection Tube Size A

Female Connection Tube Size B

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CAD

21F4M N/A 1/4 in N/A 1/4 in

N/A STEP File for 21F4M
21F4M6M N/A 1/4 in N/A 3/8 in

N/A
21F6M N/A 3/8 in N/A 3/8 in

N/A STEP File for 21F6M
21F4M9M N/A 1/4 in N/A 9/16 in

N/A STEP File for 21F4M9M
21F6M9M N/A 3/8 in N/A 9/16 in

N/A STEP File for 21F6M9M
21F9M N/A 9/16 in N/A 9/16 in

N/A STEP File for 21F9M
21F4M12M N/A 1/4 in N/A 3/4 in

N/A STEP File for 21F4M12M
21F6M12M N/A 3/8 in N/A 3/4 in

N/A STEP File for 21F6M12M
21F9M12M N/A 9/16 in N/A 3/4 in

N/A STEP File for 21F9M12M
21F12M N/A 3/4 in N/A 3/4 in

N/A STEP File for 21F12M
21F4M16M N/A 1/4 in N/A 1 in

N/A STEP File for 21F4M16M
21F6M16M N/A 3/8 in N/A 1 in

N/A STEP File for 21F6M16M
21F9M16M N/A 9/16 in N/A 1 in

N/A
21F12M16M N/A 3/4 in N/A 1 in

N/A STEP File for 21F12M16M
21F16M N/A 1 in N/A 1 in

N/A STEP File for 21F16M
21F4M4H N/A 1/4 in N/A 1/4 in

N/A
21F6M4H N/A 3/8 in N/A 1/4 in

N/A STEP File for 21F6M4H
21F9M4H N/A 9/16 in N/A 1/4 in

N/A STEP File for 21F9M4H
21F12M4H N/A 3/4 in N/A 1/4 in

N/A STEP File for 21F12M4H
21F16M4H N/A 1 in N/A 1/4 in

N/A
65F4H N/A 1/4 in N/A 1/4 in

N/A STEP File for 65F4H
21F4M6H N/A 1/4 in N/A 3/8 in

N/A STEP File for 21F4M6H
21F6M6H N/A 3/8 in N/A 3/8 in

N/A
21F9M6H N/A 9/16 in N/A 3/8 in

N/A
21F12M6H N/A 3/4 in N/A 3/8 in

N/A
21F16M6H N/A 1 in N/A 3/8 in

N/A
65F4H6H N/A 1/4 in N/A 3/8 in

N/A
65F6H N/A 3/8 in N/A 3/8 in

N/A STEP File for 65F6H
21F4M9H N/A 1/4 in N/A 9/16 in

N/A STEP File for 21F4M9H
21F6M9H N/A 3/8 in N/A 9/16 in

N/A
21F9M9H N/A 9/16 in N/A 9/16 in

N/A STEP File for 21F9M9H
21F12M9H N/A 3/4 in N/A 9/16 in

N/A
21F16M9H N/A 1 in N/A 9/16 in

N/A
65F4H9H N/A 1/4 in N/A 9/16 in

N/A
65F6H9H N/A 3/8 in N/A 9/16 in

N/A
65F9H N/A 9/16 in N/A 9/16 in

N/A STEP File for 65F9H
21F4M5U N/A 1/4 in N/A 5/16 in

N/A
21F6M5U N/A 3/8 in N/A 5/16 in

N/A
21F9M5U N/A 9/16 in N/A 5/16 in

N/A
21F12M5U N/A 3/4 in N/A 5/16 in

N/A
21F16M5U N/A 1 in N/A 5/16 in

N/A
65F4H5U N/A 1/4 in N/A 5/16 in

N/A STEP File for 65F4H5U
65F6H5U N/A 3/8 in N/A 5/16 in

N/A
65F9H5U N/A 9/16 in N/A 5/16 in

N/A STEP File for 65F9H5U
152F5U N/A 5/16 in N/A 5/16 in

N/A STEP File for 152F5U
15F4M2P N/A 1/4 in N/A 1/8 in

N/A STEP File for 15F4M2P
15F6M2P N/A 3/8 in N/A 1/8 in

N/A
15F9M2P N/A 9/16 in N/A 1/8 in

N/A
15F12M2P N/A 3/4 in N/A 1/8 in

N/A
15F16M2P N/A 1 in N/A 1/8 in

N/A
15F4H2P N/A 1/4 in N/A 1/8 in

N/A
15F6H2P N/A 3/8 in N/A 1/8 in

N/A
15F9H2P N/A 9/16 in N/A 1/8 in

N/A
15F5U2P N/A 5/16 in N/A 1/8 in

N/A
15F4M4P N/A 1/4 in N/A 1/4 in

N/A STEP File for 15F4M4P
15F6M4P N/A 3/8 in N/A 1/4 in

N/A
15F9M4P N/A 9/16 in N/A 1/4 in

N/A STEP File for 15F9M4P
15F12M4P N/A 3/4 in N/A 1/4 in

N/A STEP File for 15F12M4P
15F16M4P N/A 1 in N/A 1/4 in

N/A
15F4H4P N/A 1/4 in N/A 1/4 in

N/A STEP File for 15F4H4P
15F6H4P N/A 3/8 in N/A 1/4 in

N/A
15F9H2P N/A 9/16 in N/A 1/4 in

N/A
15F5U4P N/A 5/16 in N/A 1/4 in

N/A
15F4M6P N/A 1/4 in N/A 3/8 in

N/A STEP File for 15F4M6P
15F6M6P N/A 3/8 in N/A 3/8 in

N/A STEP File for 15F6M6P
15F9M6P N/A 9/16 in N/A 3/8 in

N/A
15F12M6P N/A 3/4 in N/A 3/8 in

N/A
15F16M6P N/A 1 in N/A 3/8 in

N/A
15F4H6P N/A 1/4 in N/A 3/8 in

N/A STEP File for 15F4H6P
15F6H6P N/A 3/8 in N/A 3/8 in

N/A
15F9H6P N/A 9/16 in N/A 3/8 in

N/A STEP File for 15F9H6P
15F5U6P N/A 5/16 in N/A 3/8 in

N/A
15F4M8P N/A 1/4 in N/A 1/2 in

N/A
15F6M8P N/A 3/8 in N/A 1/2 in

N/A
15F9M8P N/A 9/16 in N/A 1/2 in

N/A STEP File for 15F9M8P
15F12M8P N/A 3/4 in N/A 1/2 in

N/A STEP File for 15F12M8P
15F16M8P N/A 1 in N/A 1/2 in

N/A STEP File for 15F16M8P
15F4H8P N/A 1/4 in N/A 1/2 in

N/A STEP File for 15F4H8P
15F6H8P N/A 3/8 in N/A 1/2 in

N/A STEP File for 15F6H8P
15F9H8P N/A 9/16 in N/A 1/2 in

N/A
15F5U8P N/A 5/16 in N/A 1/2 in

N/A
15F4M12P N/A 1/4 in N/A 3/4 in

N/A STEP File for 15F4M12P
15F6M12P N/A 3/8 in N/A 3/4 in

N/A
15F9M12P N/A 9/16 in N/A 3/4 in

N/A STEP File for 15F9M12P
15F12M12P N/A 3/4 in N/A 3/4 in

N/A
15F16M12P N/A 1 in N/A 3/4 in

N/A
15F4H12P N/A 1/4 in N/A 3/4 in

N/A
15F6H12P N/A 3/8 in N/A 3/4 in

N/A
15F9H6P N/A 9/16 in N/A 3/4 in

N/A STEP File for 15F9H6P
15F5U12P N/A 5/16 in N/A 3/4 in

N/A
1F4M16P N/A 1/4 in N/A 1 in

N/A
15F6M16P N/A 3/8 in N/A 1 in

N/A
15F9M16P N/A 9/16 in N/A 1 in

N/A STEP File for 15F9M16P
15F12M16P N/A 3/4 in N/A 1 in

N/A
15F16M16P N/A 1 in N/A 1 in

N/A STEP File for 15F16M16P
15F4H16P N/A 1/4 in N/A 1 in

N/A
15F6H16P N/A 3/8 in N/A 1 in

N/A
15F9H8P N/A 9/16 in N/A 1 in

N/A
15F5U16P N/A 5/16 in N/A 1 in

N/A
101F4U N/A 1/4 in N/A 1/4 in

N/A
101F4U6U N/A 1/4 in N/A 3/8 in

N/A
101F4U9U N/A 1/4 in N/A 9/16 in

N/A
101F4U5U N/A 1/4 in N/A 5/16 in

N/A
101F6U N/A 3/8 in N/A 3/8 in

N/A
101F6U9U N/A 3/8 in N/A 9/16 in

N/A
101F6U5U N/A 3/8 in N/A 5/16 in

N/A
101F9U N/A 9/16 in N/A 9/16 in

N/A
101F9U5U N/A 9/16 in N/A 5/16 in

N/A
152F5U N/A 5/16 in N/A 5/16 in

N/A STEP File for 152F5U
Unit of Measure
1