SU HS4 Waxstat type MG Midget 1500 Triumph Spitfire Dolomite 1500 does two carbs rebuild kit [CSK49]

SU HS4 Waxstat type  does two carbs rebuild kit P/N CSK49

As used in:

MG Midget 1500 4 cyl. 1978-on with carb nos. FZX1122F FZX1122R 

Triumph Spitfire 1500  1977-80 with carb nos. FZX1122F FZX1122R & FZX1327F FZX1327R

Triumph Dolomite 1500 1977-1980 with carb nos. FZX1122F FZX1122R & FZX1327F FZX1327R