Vallox > Vallox Pureo TX 1800 pump group Vallox Pureo TX 1800 pump group Vallox Pureo TX 1800 pump group A small and efficient pump group with a two-way valve function for a Vallox Pureo TX 1800 air handling unit. Category: Vallox Pureo accessories Technical details Product numbers Technical details Product numbers Product weight 4.7 kg Package weight 4.7 kg Vallox Pureo TX 1800 shunt unit SKU: 3617080 Product weight: 4.7 kg Package weight: 4.7 kg