This part fits the following boilers:
| Fits Appliance(s) | GC No. | |
| Baxi Combi Instant 105 E | - | 47-075-09 |
| Baxi Combi Instant 105E HE | - | 47-075-19 |
| Baxi Combi Instant 80E | - | 47-075-13 |
| Baxi Combi Instant 80E HE | - | 47-075-17 |
| Baxi Duo Tec 24 HE | - | 47-075-23 |
| Baxi Duo Tec 28 HE | - | 47-075-25 |
| Baxi Duo Tec 33 HE | - | 47-075-24 |
| Baxi Duo Tec 40 HE | - | 47-075-26 |
| Baxi Combi 24 HE | - | 47-075-20 |
| Baxi Combi 28 HE | - | 47-075-21 |
| Baxi Combi 33 HE | - | 47-075-22 |
| Baxi Platinum Combi 28 HE A (After Serial No. BNC0932 Issue 7) | - | 47-075-32 |
| Baxi Platinum Combi 28 HE A (Before Serial No. BNC0932 Issue 7) | - | 47-075-32 BEFORE |
| Baxi Platinum Combi 33 HE | - | 47-075-29 |
| Baxi Platinum Combi 33 HE A (After Serial No. BNE1112 Issue 5) | - | 47-075-33 |
| Baxi Platinum Combi 33 HE A (Before Serial No. BNE1112 Issue 6) | - | 47-075-33 BEFORE |
| Baxi Platinum Combi 40 HE | - | 47-075-30 |
| Potterton Gold 24 HE Combi | - | 47-590-05 |
| Potterton Gold 28 HE Combi | - | 47-590-06 |
| Potterton Gold 33 HE Combi | - | 47-590-19 |
| Potterton Performa 24I HE | - | 47-393-12 |
| Potterton Performa 28I | - | 47-393-08 |
| Potterton Promax Combi 24 HE Plus | - | 47-393-17 |
| Potterton Promax Combi 24 HE Plus A | - | 47-393-21 |
| Potterton Promax Combi 24 HE Plus LPG | - | 47-393-24 |
| Potterton Promax Combi 28 HE Plus | - | 47-590-04 |
| Potterton Promax Combi 28 HE Plus A | - | 47-393-22 |
| Potterton Promax Combi 33 HE Plus | - | 47-590-03 |
| Potterton Promax Combi 33 HE Plus A | - | 47-393-23 |
| Baxi 105 HE A Instant | - | 47-075-50 |
| Baxi Duo Tec 24 HE A (After Serial No. BTG0815 Issue 9) | - | 47-075-35 |
| Baxi Duo Tec 24 HE A (Before Serial No. BTG0815 Issue 9) | - | 47-075-35 BEFORE |
| Baxi Duo Tec 28 HE A (After Serial No.CAC0929 Issue 9) | - | 47-075-36 |
| Baxi Duo Tec 28 HE A (Before Serial No.CAC0929 Issue 9) | - | 47-075-36 BEFORE |
| Baxi Duo Tec 33 HE A (After Serial No.BTH1112 Issue 9) | - | 47-075-37 |
| Baxi Duo Tec 33 HE A (Before Serial No.BTH1112 Issue 8) | - | 47-075-37 BEFORE |
| Baxi Duo Tec 40 HE A (Issue 8) | - | 47-075-38 |
| Baxi Platinum Combi 24 HE | - | 47-075-27 |
| Baxi Platinum Combi 24 HE A (After Serial No. BMY0815 Issue 6) | - | 47-075-31 |
| Baxi Platinum Combi 24 HE A (Before Serial No. BMY0815 Issue 6) | - | 47-075-31 BEFORE |
| Baxi Platinum Combi 28 HE | - | 47-075-28 |
| Baxi Platinum Combi 40 HE A (Issue 4) | - | 47-075-34 |
| Potterton Heatmax Combi 24 HE | - | 47-393-27 |
| Potterton Heatmax Combi 28 HE | - | 47-393-28 |
| Potterton Heatmax Combi 33 HE (After Serial No FMN1112) | - | 47-393-29 |
| Potterton Heatmax Combi 33 HE (Before Serial No FMN1112) | - | 47-393-29 BEFORE |
| Baxi 624 Combi | - | 47-077-28 |
| Baxi 630 Combi | - | 47-077-29 |
| Baxi 636 Combi | - | 47-077-30 |
| Baxi 825 Combi | - | 47-077-38 |
| Baxi 830 Combi | - | 47-077-39 |
| Baxi 836 Combi | - | 47-077-40 |
| Baxi 24 Combi | - | 47-075-67 |
| Baxi 28 Combi | - | 47-075-68 |
| Baxi 40 Combi | - | 47-075-70 |
| Baxi Duo Tec 2 24 GA Range | - | 47-075-54 |
| Baxi Duo Tec 2 28 GA Range | - | 47-075-55 |
| Baxi Duo Tec 2 33 GA Range | - | 47-075-56 |
| Baxi Duo Tec 2 40 GA Range | - | 47-075-57 |
| Baxi Duo Tec 24 Combi ErP (Serial No. Ending AC Issue 3) | - | 47-075-96 AC |
| Baxi Duo Tec 24 Combi ErP (Serial No. Ending BC Issue 2) | - | 47-075-96 BC |
| Baxi Duo Tec 24 Combi ErP (Serial No. Ending CC ) | - | 47-075-96 CC |
| Baxi Duo Tec 24 Combi ErP (Serial No. Ending DC ) | - | 47-075-96 DC |
| Baxi Duo Tec 28 Combi ErP (Serial No. Ending AC Issue 3) | - | 47-075-97 AC |
| Baxi Duo Tec 28 Combi ErP (Serial No. Ending BC Issue 3) | - | 47-075-97 BC |
| Baxi Duo Tec 28 Combi ErP (Serial No. Ending CC ) | - | 47-075-97 CC |
| Baxi Duo Tec 28 Combi ErP (Serial No. Ending DC ) | - | 47-075-97 DC |
| Baxi Duo Tec 33 Combi ErP (Serial No. Ending AC Issue 3) | - | 47-075-99 AC |
| Baxi Duo Tec 33 Combi ErP (Serial No. Ending BC Issue 2) | - | 47-075-99 BC |
| Baxi Duo Tec 33 Combi ErP (Serial No. Ending CC ) | - | 47-075-99 CC |
| Baxi Duo Tec 33 Combi ErP (Serial No. Ending DC ) | - | 47-075-99 DC |
| Baxi Duo Tec 40 Combi ErP (Serial No. Ending AC Issue 3) | - | 47-077-03 AC |
| Baxi Duo Tec 40 Combi ErP (Serial No. Ending BC Issue 2) | - | 47-077-03 BC |
| Baxi Duo Tec 40 Combi ErP (Serial No. Ending CC ) | - | 47-077-03 CC |
| Baxi Duo Tec 40 Combi ErP (Serial No. Ending DC ) | - | 47-077-03 DC |
| Baxi Ecoblue Advance Combi 24 | - | 47-075-87 |
| Baxi Ecoblue Advance Combi 28 | - | 47-075-88 |
| Baxi Ecoblue Advance Combi 33 | - | 47-075-89 |
| Baxi Ecoblue Advance Combi 40 | - | 47-075-90 |
| Baxi Advance Combi 24 ERP | - | 47-077-14 |
| Baxi Advance Combi 28 ERP | - | 47-077-15 |
| Baxi Advance Combi 33 ERP | - | 47-077-16 |
| Baxi Advance Combi 40 ERP | - | 47-077-17 |
| Baxi Platinum 2 Combi 28 GA | - | 47-075-61 |
| Baxi Platinum 2 Combi 33 GA | - | 47-075-62 |
| Baxi Platinum 2 Combi 40 GA | - | 47-075-63 |
| Baxi 24 Combi ERP (Serial No Ending CC) | - | 47-077-04 CC |
| Baxi 24 Combi ERP (Serial No Ending DC) | - | 47-077-04 DC |
| Baxi 24 Combi ERP (Serial No Ending EC) | - | 47-077-04 EC |
| Baxi 24 Combi Erp (Serial No. Ending IN AC Issue 2) | - | 47-077-04 AC |
| Baxi 24 Combi Erp (Serial No. Ending IN BC Issue 2) | - | 47-077-04 BC |
| Baxi 28 Combi ERP (Serial No Ending CC) | - | 47-077-05 CC |
| Baxi 28 Combi ERP (Serial No Ending DC) | - | 47-077-05 DC |
| Baxi 28 Combi ERP (Serial No Ending EC) | - | 47-077-05 EC |
| Baxi 28 Combi Erp (Serial No. Ending IN AC Issue 2) | - | 47-077-05 AC |
| Baxi 28 Combi Erp (Serial No. Ending IN BC Issue 2) | - | 47-077-05 BC |
| Baxi 33 Combi ERP (Serial No Ending CC) | - | 47-077-06 CC |
| Baxi 33 Combi ERP (Serial No Ending DC) | - | 47-077-06 DC |
| Baxi 33 Combi ERP (Serial No Ending EC) | - | 47-077-06 EC |
| Baxi 33 Combi Erp (Serial No. Ending IN AC Issue 2) | - | 47-077-06 AC |
| Baxi 33 Combi Erp (Serial No. Ending IN BC Issue 2) | - | 47-077-06 BC |
| Baxi 40 Combi ERP (Serial No Ending CC) | - | 47-077-07 CC |
| Baxi 40 Combi ERP (Serial No Ending DC) | - | 47-077-07 DC |
| Baxi 40 Combi ERP (Serial No Ending EC) | - | 47-077-07 EC |
| Baxi 40 Combi Erp (Serial No. Ending IN AC Issue 2) | - | 47-077-07 AC |
| Baxi 40 Combi Erp (Serial No. Ending IN BC Issue 2) | - | 47-077-07 BC |
| Main Eco Compact 25 Combi | - | 47-467-14 |
| Main Eco Compact 30 Combi | - | 47-467-15 |
| Main 25 Eco Elite Post Serial Number MMH 1512 | - | 47-467-08 |
| Main 25 Eco Elite Pre Serial Number MMH 1512 | - | 47-467-08- |
| Main 30 Eco Elite Post Serial Number MMH 1512 | - | 47-467-09 |
| Main 30 Eco Elite Pre Serial Number MMH 1512 | - | 47-467-09- |
| Main 25 Combi ERP (Serial No Ending AC) | - | 47-467-12 AC |
| Main 25 Combi ERP (Serial No Ending BC) | - | 47-467-12 BC |
| Main 25 Combi ERP (Serial No Ending CC) | - | 47-467-12 CC |
| Main 25 Combi ERP (Serial No Ending DC) | - | 47-467-12 DC |
| Main 25 Combi ERP (Serial No Ending EC) | - | 47-467-12 EC |
| Main 30 Combi ERP (Serial No Ending AC) | - | 47-467-13 AC |
| Main 30 Combi ERP (Serial No Ending BC) | - | 47-467-13 BC |
| Main 30 Combi ERP (Serial No Ending CC) | - | 47-467-13 CC |
| Main 30 Combi ERP (Serial No Ending DC) | - | 47-467-13 DC |
| Main 30 Combi ERP (Serial No Ending EC) | - | 47-467-13 EC |
| Main Combi 25 Eco | - | 47-467-01 |
| Main Combi 30 Eco | - | 47-467-03 |
| Potterton Combi 25 | - | 47-393-58 |
| Potterton Combi 25 LPG | - | 47-393-70 |
| Potterton Combi 30 | - | 47-393-59 |
| Potterton Combi 30 LPG | - | 47-393-69 |
| Potterton Combi 36 | - | 47-393-67 |
| Potterton Gold 24 HE A Combi (After Serial No BMX0815 & GNH0815) | - | 47-393-18 |
| Potterton Gold 24 HE A Combi (Before Serial No BMX0815 & GNH0815) | - | 47-393-18 BEFORE |
| Potterton Gold 28 HEA Combi (After Serial No BNF0932 & GNK0932) | - | 47-393-19 |
| Potterton Gold 28 HEA Combi (Before Serial No BNF0932 & GNK0932) | - | 47-393-19 BEFORE |
| Potterton Gold 33 HE A Combi (After Serial No GNL1112) | - | 47-393-20 |
| Potterton Gold 33 HE A Combi (Before Serial No GNL1112) | - | 47-393-20 BEFORE |
| Potterton Gold 24 Combi ErP (Serial No Ending AC) | - | 47-393-43 |
| Potterton Gold 24 Combi ErP (Serial No Ending BC & CC) | - | 47-393-43 BC |
| Potterton Gold 24 Combi ERP (Serial No Ending DC) | - | 47-393-43 DC |
| Potterton Gold 24 Combi ERP (Serial No Ending EC) | - | 47-393-43 EC |
| Potterton Gold 28 Combi ErP (Serial No Ending AC) | - | 47-393-44 |
| Potterton Gold 28 Combi ErP (Serial No Ending BC & CC) | - | 47-393-44 BC |
| Potterton Gold 28 Combi ERP (Serial No Ending DC) | - | 47-393-44 DC |
| Potterton Gold 28 Combi ERP (Serial No Ending EC) | - | 47-393-44 EC |
| Potterton Gold 28 Combi ErP LPG (Serial No Ending AC) | - | 47-393-45 |
| Potterton Gold 28 Combi ErP LPG (Serial No Ending BC & CC) | - | 47-393-45 BC |
| Potterton Gold 28 Combi ERP LPG (Serial No Ending DC) | - | 47-393-45 DC |
| Potterton Gold 28 Combi ERP LPG (Serial No Ending EC) | - | 47-393-45 EC |
| Potterton Gold 33 Combi ErP (Serial No Ending AC) | - | 47-393-46 |
| Potterton Gold 33 Combi ErP (Serial No Ending BC & CC) | - | 47-393-46 BC |
| Potterton Gold 33 Combi ERP (Serial No Ending DC) | - | 47-393-46 DC |
| Potterton Gold 33 Combi ERP (Serial No Ending EC) | - | 47-393-46 EC |
| Potterton Promax Combi 24 ERP (Serial No Ending AC) | - | 47-393-47 AC |
| Potterton Promax Combi 24 ERP (Serial No Ending BC & CC) | - | 47-393-47 BC |
| Potterton Promax Combi 24 ERP (Serial No Ending DC) | - | 47-393-47 DC |
| Potterton Promax Combi 24 ERP (Serial No Ending EC) | - | 47-393-47 EC |
| Potterton Promax Combi 28 ERP (Serial No Ending AC) | - | 47-393-48AC |
| Potterton Promax Combi 28 ERP (Serial No Ending BC & CC) | - | 47-393-48 BC |
| Potterton Promax Combi 28 ERP (Serial No Ending DC) | - | 47-393-48 DC |
| Potterton Promax Combi 28 ERP (Serial No Ending EC) | - | 47-393-48 EC |
| Potterton Promax Combi 33 ERP (Serial No Ending AC) | - | 47-393-49 AC |
| Potterton Promax Combi 33 ERP (Serial No Ending BC & CC) | - | 47-393-49 BC |
| Potterton Promax Combi 33 ERP (Serial No Ending DC) | - | 47-393-49 DC |
| Potterton Promax Combi 33 ERP (Serial No Ending EC) | - | 47-393-49 EC |
| Potterton Promax Ultra 24 Combi ERP (Serial No Ending AC) | - | 47-393-54 AC |
| Potterton Promax Ultra 24 Combi ERP (Serial No Ending BC & CC) | - | 47-393-54 BC |
| Potterton Promax Ultra 24 Combi ERP (Serial No Ending DC) | - | 47-393-54 DC |
| Potterton Promax Ultra 28 Combi ERP (Serial No Ending AC) | - | 47-393-55 AC |
| Potterton Promax Ultra 28 Combi ERP (Serial No Ending BC & CC) | - | 47-393-55 BC |
| Potterton Promax Ultra 28 Combi ERP (Serial No Ending DC) | - | 47-393-55 DC |
| Potterton Promax Ultra 33 Combi ERP (Serial No Ending AC) | - | 47-393-56 AC |
| Potterton Promax Ultra 33 Combi ERP (Serial No Ending BC & CC) | - | 47-393-56 BC |
| Potterton Promax Ultra 33 Combi ERP (Serial No Ending DC) | - | 47-393-56 DC |
| Potterton Promax Ultra 40 Combi ERP (Serial No Ending AC) | - | 47-393-57 AC |
| Potterton Promax Ultra 40 Combi ERP (Serial No Ending BC & CC) | - | 47-393-57 BC |
| Potterton Promax Ultra 40 Combi ERP (Serial No Ending DC) | - | 47-393-57 DC |
| Potterton Titanium 24 | - | 47-393-39 |
| Potterton Titanium 28 | - | 47-393-40 |
| Potterton Titanium 33 | - | 47-393-41 |
| Potterton Titanium 40 | - | 47-393-42 |
| Potterton Titanium 24 Combi Erp (Serial No. Ending in AC) | - | 47-393-50 |
| Potterton Titanium 24 Combi Erp (Serial No. Ending in BC & CC) | - | 47-393-50 BC |
| Potterton Titanium 24 Combi Erp (Serial No. Ending in DC) | - | 47-393-50 DC |
| Potterton Titanium 24 Combi Erp (Serial No. Ending in EC) | - | 47-393-50 EC |
| Potterton Titanium 28 Combi Erp (Serial No. Ending in AC) | - | 47-393-51 |
| Potterton Titanium 28 Combi Erp (Serial No. Ending in BC & CC) | - | 47-393-51 BC |
| Potterton Titanium 28 Combi Erp (Serial No. Ending in DC) | - | 47-393-51 DC |
| Potterton Titanium 28 Combi Erp (Serial No. Ending in EC) | - | 47-393-51 EC |
| Potterton Titanium 33 Combi Erp (Serial No. Ending in AC) | - | 47-393-52 |
| Potterton Titanium 33 Combi Erp (Serial No. Ending in BC & CC) | - | 47-393-52 BC |
| Potterton Titanium 33 Combi Erp (Serial No. Ending in DC) | - | 47-393-52 DC |
| Potterton Titanium 33 Combi Erp (Serial No. Ending in EC) | - | 47-393-52 EC |
| Potterton Titanium 40 Combi Erp (Serial No. Ending in AC) | - | 47-393-53 |
| Potterton Titanium 40 Combi Erp (Serial No. Ending in BC & CC) | - | 47-393-53 BC |
| Potterton Titanium 40 Combi Erp (Serial No. Ending in DC) | - | 47-393-53 DC |
| Potterton Titanium 40 Combi Erp (Serial No. Ending in EC) | - | 47-393-53 EC |