4 Full Pump Parts Kits for Spectra S1/S2/9 Plus/Synergy Gold, Replacement Kit for Spectra Pump Parts 4PC,Include 12mm Flange, Duckbill Valve, Tube, Bottle, Backflow Protector, Not Original Accessories

Great for the price, it was opened tho but unused
I purchased the 4 Full Pump Parts Kits for Spectra S1/S2/9 Plus/Synergy Gold as a backup for my Spectra S1, and overall, I’m really happy with the quality and value. The kits arrived opened but completely unused, and everything was in excellent, clean condition — no signs of wear or residue, so I felt confident using them.Each kit includes a 17mm flange, duckbill valve, tubing, bottle, and backflow protector. The parts are fully compatible with my Spectra pump, and the suction performance is on par with the original parts. It’s a major convenience having four complete sets — especially for exclusive pumpers or anyone who needs quick swaps between sessions.One important note: the flange tunnel is on the shorter side, which may not be ideal for moms with elastic nipples. If you tend to pull deeply into the flange tunnel during pumping, these may not provide enough length for comfort or optimal performance. That said, for those who don’t have this issue, the flanges work well and maintain a good seal.Even though these aren’t official Spectra-brand accessories, the build quality is surprisingly solid. The backflow protectors function as expected, and all parts fit securely without leaks.Overall, a great budget-friendly option — just keep the tunnel length in mind depending on your specific pumping needs.

Amazing kit for the price! As good as OEM — Some parts I like better than OEM even!
I’d give this set 10 stars if I could! I’ve been pumping (& nursing) for years. Like, seriously… YEARS. I pumped for about 3 years with my daughter especially since she couldn’t tolerate most milks, pumped after a late-term loss to honor my son’s legacy, and even though my earthside son just turned 4 and is weaned, I still pump some to donate including for my infant niece.It doesn’t take much for pumping to lose its luster, but I get excited over the little things like new pump parts kits/ accessories and the nerd in me likes to see how different sets and the age of the parts changes my output. I have been doing this for so long, that I can anticipate my output like clockwork. As soon as my output decreases, I know it’s time to start changing out some of the sealing parts to better help with suction, and because I have to sanitize parts like crazy, I both have to have many in stock, and also have to have spare parts on hand as I need to toss older parts every few weeks (like the valves — the flanges and storage containers, thankfully, last longer).I’ve gotten many pumping kit replacement parts over the years, both OEM and off-brand, and this one is probably top 5 for me (out of probably 25+!). The quality seems on par, the plastics seem better quality and more resistant to things like hard water and frequent sanitizing, and they’ve just stayed looking new even after some abuse of multiple washings/ use/ sanitizing cycles. Also right on cue, my output went back to normal after switching out some of the parts for these parts, similar to OEM.This particular kit seems to be an excellent value for all it comes with. Better value than many I’ve gotten. It works as well if not better than OEM too, in my experience. I highly recommend! The storage bottles are excellent and seal nicely so no spilled milk and I like that the lids add a little more color to my life vs. the standard white, yellow, or pink lids. It’s the little things.

Awesome value for two full sets
This is an amazing set for the money. You get so much. I got this to try the 20mm after using 21mm and feeling like it was too big, and these worked really well to get my typical output. I boiled everything for 10 minutes to sanitize and now throw them in the sanitizer after washing. The duckbill valves are the tightest generic ones I’ve gotten, more like spectra’s. One was so tight at first that my hand flew off and spilled my bottle of milk, so I’ve been very careful since. The flange circumference is smaller than the spectra, comparable to a lot of other generic options, which has been fine for me. Buy this if you want to have a lot of spares and not have to clean constantly but want to save over the other options.

Missing pieces, containers don’t screw onto flanges?
Very confused.. the (4) white rubber pieces that attach to the flange were not in the package and the (4) milk containers do not screw onto the flanges?