will fit following boilers

• Combi 30 GC No. 4704463)
• Combi 35 (GC No. 4704464)
• EcoFIT pure 412 VU 126/6-3 OV (GC No. 4169408)
• EcoFIT pure 415 VU 156/6-3 OV (GC No. 4169409)
• EcoFIT pure 418 VU 186/6-3 OV (GC No. 4169410)
• EcoFIT pure 425 VU 256/6-3 OV (GC No. 4169411)
• EcoFIT pure 430 VU 306/6-3 OV (GC No. 4169412)
• EcoFIT pure 435 VU 356/6-3 OV (GC No. 4169419)
• EcoFIT pure 612 VU 126/6-3 (GC No. 4169403)
• EcoFIT pure 615 VU 156/6-3 (GC No. 4169404)
• EcoFIT pure 618 VU 186/6-3 (GC No. 4169405)
• EcoFIT pure 625 VU 256/6-3 (GC No. 4169406)
• EcoFIT pure 630 VU 306/6-3 (GC No. 4169407)
• EcoFIT pure 825 VUW 256/6-3 (GC No. 4704468)
• EcoFIT pure 830 VUW 306/6-3 (GC No. 4704474)
• EcoFIT pure 830 VUW 306/6-3 LPG (GC No. 4704475)
• EcoFIT pure 835 VUW 356/6-3 (GC No. 4704470)
• EcoFIT sustain 825 VUW 256/6-3 (GC No. 4704471)
• EcoFIT sustain 830 VUW 306/6-3 (GC No. 4704472)
• EcoFIT sustain 835 VUW 356/6-3 (GC No. 4704473)
• ecoTEC plus 412 VU 126/6-5 OV (GC No. 4104471)
• ecoTEC plus 412 VU 126/6-5 OVZ (GC No. 4169413)
• ecoTEC plus 415 VU 156/6-5 OV (GC No. 4104472)
• ecoTEC plus 415 VU 156/6-5 OVZ (GC No. 4169414)
• ecoTEC plus 418 VU 186/6-5 OV (GC No. 4104473)
• ecoTEC plus 418 VU 186/6-5 OVZ (GC No. 4169415)
• ecoTEC plus 424 VU 246/6-5 OV (GC No. 4104474)
• ecoTEC plus 424 VU 246/6-5 OVZ (GC No. 4169416)
• ecoTEC plus 430 VU 306/6-5 OV (GC No. 4104475)
• ecoTEC plus 430 VU 306/6-5 OVZ (GC No. 4169417)
• ecoTEC plus 435 VU 356/6-5 OVZ (GC No. 4104476)
• ecoTEC sustain 24 VUW 246/7-2 (GC No. 4704479)
• ecoTEC sustain 28 VUW 286/7-2 (GC No. 4704480)
• ecoTEC sustain 34 VUW 346/7-2 (GC No. 4704481)
• Regular 12 (GC No. 4104488)
• Regular 15 (GC No. 4104489)
• Regular 18 (GC No. 4104490)
• Regular 18 P (GC No. 4104491)
• Regular 25 (GC No. 4104492)
• Regular 30 (GC No. 4104493)
• System 12 (GC No. 4104494)
• System 15 (GC No. 4104495)
• System 18 (GC No. 4104496)
• System 25 (GC No. 4104497)