SKU: 91531970908

Alpha Wide Range Restraint Coupling - 4"

Sale price$425.25 Regular price$472.50
Save 10%

Pay in installments of $118.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Alpha Wide Range Restraint Coupling - 4"Romac Industries, Inc. Alpha Wide Range Restraint Coupling is manufactured in the USA. The Alpha Coupling installs in about three minutes, and accommodates up to 8 degrees of deflection (4 degrees on each end). Use one piece, stab fit installation, covers IPS PVC through DI pipe diameters without having to change components, sizes 4" 16", compatible with ductile iron, cast iron (class A, B, C & D), PVC IPS size (Sch 40, Sch 80 and SDR 21), PVC C900 &

Romac Industries, Inc. Alpha™ Wide Range Restraint Coupling is manufactured in the USA.  The Alpha Coupling installs in about three minutes, and accommodates up to 8 degrees of deflection (4 degrees on each end).  Use one piece, stab-fit installation, covers IPS PVC through DI pipe diameters without having to change components, sizes 4" - 16", compatible with ductile iron, cast iron (class A, B, C & D), PVC IPS size (Sch 40, Sch 80 and SDR 21), PVC C900 & C909 & HDPE (size 4" - 12").  Working Pressure up to 350 psi.  

To order, determine the O.D. of the pipes to be coupled, and select coupling size which covers the pipe diameters of both pipe ends.  

Materials:

Castings - All cast components (end rings, center ring, and bolt guides) are ductile iron, meeting or exceeding the requirements of ASTM A 536, grade 65-45-12.

Grippers - Ductile (nodular) iron, meeting or exceeding ASTM A 536, Grade 65-45-12. Machine sharpened and heat treated. Xylan 1424 coated for superior corrosion resistance. 

Gaskets SBR compounded for water and sewer service per ASTM D2000, classified by UL to meet NSF61 or NBR compounded for water and sewer service per ASTM D2000, NSF61 Certified. Other compounds available upon request.

Draw Hooks - 304L stainless steel.

Ramp Runners - Reinforced Nylon.

Bolts and Nuts - 5/8-11 bolts with heavy hex nuts. E-coated nuts, 304 stainless steel. Fasteners provided with anti-galling protection.

Coatings - Center ring is Romacoat fusion bonded epoxy, NSF 61 Certified. End rings are Romabond polyester.

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91531970908

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 21 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
Theresa C.
Draper, US
★★★★★ 5
They Work
Husband struggles with cracking feet, he has tried so many home remedies these work great to keep the moisturizer on and the carpet dry!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
R
Verified Purchase
raymond jones
Natrona Heights, US
★★★★★ 1
Not worth the time or money
Never buy these, they causes feet cramps and bad pain even if you use foot pain cream
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
G
Verified Purchase
Greg from MidW
Omaha, US
★★★★★ 3
Does the job but dangerous to walk with!
Does the job but dangerous to walk with: foot is sliding inside the sock if the foot was treated with cream or lotion prior. It is uncomfortable to sleep with but a necessary hurdle to heal your heels!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
T
Verified Purchase
Texgurl
Fort Morgan, US
★★★★★ 4
Does the trick
Bought it with urea cream for my senior dad who was diabetes. Careful with it, it will tear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 5
The really work!
Bought these or a friend with severely dry cracked feet. The change was significant and immediate. They wore them around the house for a day and that night they could already feel the difference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026

recommand products