Overview Reviews Product Description Pressure measuring stick for VAV RetrofitFor round boxes up to 16" [400 mm], Unit with diff. pressure pick-up device with seal Multipack 18 pcs. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Belimo Belimo ZPD-RE2 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments