$2500 FREE FREIGHT PROGRAM is for supplies, repair parts and whole goods. Tanks, pipe, sprayers and other large equipment are not included in this program. Applies to Continental U.S. ground shipments only.

Call for details! 1-888-677-5054


Dultmeier Sales will be closed Thursday, November 24th and Friday, November 25th in observance of Thanksgiving

Dultmeier Sales will be closed Monday, December 26th.
Normal operations will resume Tuesday, December 27th. We wish you and your family a very Merry Christmas!

Dultmeier Sales will be closed Monday, January 2nd in observance of
New Year's Day

Dultmeier Sales will be closed Monday, July 3rd and Tuesday, July 4th in observance of Independence Day.
Normal operations will resume Wednesday, July 5th. We wish you a happy 4th of July!!

We are experiencing some technical difficulties on dultmeier.com and apologize for any inconvenience.
If you are running into issues, please phone your order in to 1-888-677-5054

Customer Pickup Orders: to help reduce exposure for our customers and our employees, if you are placing an order for in-store pickup please call in your order ahead of time or place your order online and pre-pay with a credit card. Be sure to let us know when you plan to arrive. We will have your merchandise ready for you and will greet you outside our facility. Thank you for your help!

Due to the impending winter storm Wednesday afternoon and Thursday, ASAP Express is cancelling all operations effective noon Wednesday until midnight Thursday.

Safety Extension Couplings

Continental NH3 Products boasts one of the market leading products when it comes to NH3 locking collars for acme fittings. When the unit is engaged, it locks onto the hex portion of the acme adapter. This prevents the acme coupling from loosening due to twisting or vibration. These units are available in 1" or 1-1/4" pipe thread couplings with 1-3/4" acme fittings. It easily locks onto most standard acme fittings and can be mated onto any 1" or 1-1/4" anhydrous ammonia valve.

The spring-loaded locking collar keeps the unit securely in place while it is in use and easily retracts when the valve is not needed. If you have ever witnessed a valve work itself free in the field, thus sending a cloud of ammonia into the air – you know the value of this product. There is no longer a need to torque down a fitting and flatten gaskets while trying to ensure the connection stays tight during field operation. Virtually eliminate the concern of a coupling loosing due to vibration. Give it a try today – you won't be disappointed.

  • Nickel Plated Hardened Locking Collar
  • 1" & 1-1/4" Pipe Thread Couplings Available
  • Stainless Steel Spring
  • Knurled Surface on Locking Collar for Enhanced User Grip
  • Fits Standard 1-3/4" & 2-1/4" Continental NH3 Acme Adapters and Limited Compatibility with Other Manufacturers
  • No Need for Channel Locks or Pipe Wrenches to Tighten Acme Couplings
  • Improves Flow in Colder Weather
Item Description Quantity Availability

Unit Price: $75.30/EA

In Stock

Unit Price: $273.00/EA

Expected to ship
Between 12/5 & 12/18

Unit Price: $133.00/EA

In Stock

Unit Price: $284.00/EA

In Stock

Unit Price: $149.00/EA

In Stock

Unit Price: $336.00/EA

Expected to ship
Between 12/5 & 12/18

Unit Price: $185.00/EA

Expected to ship
Between 12/5 & 12/18

Unit Price: $373.00/EA

Expected to ship
Between 12/5 & 12/25