Series 1100 Distributors ISO 5599/1 Modular base with side and bottom connections 2.125 Overall dimensions and technical information are provided solely for informative purposes and may be modified without notice. 2 These bases are manufactured with the outlet and pilot ports on both the sides and the bottom faces giving the option for use with any application. Unused ports must be blanked off using threaded plugs which are not included in the part number or price. To isolate bases from each other for use with different supply pressures ports 1, 3 & 5 should be plugged underneath the seal. The codes are: (size 1) - (size 2) - (size 3) 1101.17 1102.17 1103.17