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New cULus Listed K4.0 Residential Dry Horizontal Sidewall Sprinkler can Utilize a Wet System to Protect Potentially Freezing Spaces

Tuesday, April 4, 2023 - 8am

Hastings, Mich.– The Viking Corporation, a Michigan-based manufacturer and distributor of fire protection solutions, is pleased to introduce the new cULus Listed VK449 K4.0 residential dry horizontal sidewall (HSW) sprinkler. The VK449 is supplied from a wet system in a heated area, penetrating the wall to protect the hazard in areas subject to freezing, such as a balcony or a garage. 

The VK449 is cULus Listed for use in residential properties and outdoor environments and is available with an Electroless Nickel PTFE (ENT) finish. The VK449 is compatible with a wide range of pipe fittings, making it suitable for a variety of residential piping choices.

“We’re excited that the new VK449 is joining our leading line of residential sprinklers,” notes Martin Workman, Vice President – Product Management for Viking Group, Inc. “Its availability in a corrosion resistant ENT finish coupled with the fact that it’s a dry residential sprinkler rounds out Viking’s extensive residential product line."

In addition to the Electroless Nickel PTFE (ENT) finish, the VK449 is provided in brass, chrome and white polyester. The VK449 is available in Ordinary 155°F (68°C) and Intermediate 200°F (93°C) temperature ratings, and features a 1” NPT (25 mm BSPT) connection. Its maximum rated pressure of 175 psi (12 bar). 

For more information about the VK449 and Viking’s leading line of residential fire sprinklers, visit our website at or contact your local Viking SupplyNet sales representative.