ULV packages are intended for installations using single-phase power but can be ordered in 3 phase power and/or 208 volt upon request. Based around UL listed vertical inline fire pumps with limited-service fire pump controllers these systems are designed specifically for applications such as mixed-use residential/commercial buildings, smaller apartment complexes, or assisted living centers. All ULV models are available with optional jockey pumps.

ULV packages use Limited Service listed commercial controllers.