CRG,CRNG,CVT Series Check valves CRG,CRNG,CVT Check valvesHow to order CRNG03A1Series numberCVT:Thread ... -plate typeCVTCRGCRNGG typeN typeCVT-03CRG-03CRNG-0340210A1:0.4A2:3.50.22.02.4CVT-04--602100.4--CVT-06CRG-06CRNG-061252100 ... -12--3002103.2--CVT-16--4002104.8-- CRG,CRNG,CVT Series Check valves