Celebrating 20 years of selling the highest quality parts at the lowest prices. Guaranteed.

"WONDERFUL! Shipping is blinding fast! The site is great because there is an automatic inventory counter to tell you what is in or out of stock. Great site! Ordered from them several times without a hitch at all. And not to mention that their prices are CHEAP! "

"4th time returning customer thanks guys always good service."

"Thank's for making the ordering proccess to easy . I few guys I know have brought Water/Air IC of you and have had nothing but praise for you . "

"Thanks for the response. We have an inside joke that you guys only hire ninjas with how fast your service is. SIS is definitely the first place I check for parts. You guys have a great thing going on there. Thanks!"

"Thank you. This is a sign of a good business, keep up the good customer service."

"Thanks for providing the awesome service as usual! On Oct 28, 2014"