Maymom Tubing Set for Spectra Synergy Gold/Dual Compactand S1 Pro is a pack of two replacement tubing for Spectra S1 Pro, Synergy Gold and Spectra Dual Compact. Made without BPA and DEHP. The key difference between Version 1 (blue) and Version 2 (white) adapters is their shape and color. Version 2 matches the OEM Spectra in both shape and color, while Version 1 has a shorter section that connects to the pump. Tubings, 2pk Maymom/Spectra tubing. Compatible Pumps: Spectra S1 Pro, Synergy Gold and Spectra Dual Compact Ensures proper pressure control during pumping sessions. Please refer to the first product image for what you will receive. Secondary images may feature other products/accessories not included.