From Amazon
7508261 Diversey Suma Scale D5.2 Descaler 5 Litre W1080 7508261 [X2]
Nisbets
Suma Scale D5.2 Descaler Concentrate 5Ltr (2 Pack)
Mitre Linen
Suma Scale D5.2 Descaler Concentrate 5Ltr (2 Pack)
OnBuy
Suma Scale D5.2 Descaler Concentrate 5Ltr (2 Pack) - [CD518]