Application: heat pump systems, angle coupling 90 Gr 2 pcs. for PE pipe 40 x 3.7 mm for diverting PE connecting pipe for flexoTHERM with aroCOLLECTAngle coupling 90 Gr 2 pcs. for PE pipe 40 x 3.7 mm for diverting PE connecting pipe for flexoTHERM with aroCOLLECT