IT FITS FOR British Gas CELSIA 30 F1
British Gas CELSIA 40 F1
British Gas CELSIA 50 F1
British Gas CELSIA 60 F1
British Gas CELSIA 80 F1
British Gas 30 F2
British Gas 40 F2
British Gas 50 F2
British Gas 60 F2
British Gas 80 F2
Scottish Gas 30 F2
Scottish Gas 40 F2
Scottish Gas 50 F2
Scottish Gas 60 F2
Scottish Gas 80 F2
Potterton FF 55
Potterton FF 75
Potterton PRIMA F 100F
Potterton PRIMA F 30F
Potterton PRIMA F 40F
Potterton PRIMA F 50F
Potterton PRIMA F 60F
Potterton PRIMA F 80F
Potterton PROFILE 40 EL
Potterton PROFILE 50 EL
Potterton PROFILE 60 EL
Potterton PROFILE 80 EL
Potterton PROFILE PRIMA 100 E
Potterton PROFILE PRIMA 100 E
Potterton PROFILE PRIMA 30 E
Potterton PROFILE PRIMA 40 E
Potterton PROFILE PRIMA 50 E
Potterton PROFILE PRIMA 60 E
Potterton PROFILE PRIMA 60 E
Potterton PROFILE PRIMA 80 E
Potterton PROFILE PRIMA 80 E