Scotsman HF90-S Water Filter Water Filter System Kit – complete with head and adpators – including scale inhibitor. Reference: 3M Water Filter HF90-S Download Spec Sheet Enquire about the Scotsman HF90-S Water Filter Your Name (required): Company Name (required) Email Address (required): Address Line 1 (required) Address Line 2 Town/City (required) Postcode (required) Contact Number (required)*: Business Type (required) Enquiry: * We will only use your contact number if we need to contact you in relation to your enquiry.