SimPure is running a $215 off coupon for the Y9T 300GPD 6-stage countertop RO system, and that voucher at the top of this page is the lead offer. The $215 off voucher is best if you are buying the Y9T or a single high value countertop RO system and want the largest fixed dollar saving on that model. It is one use per customer and one code per order.
• Small orders under $200: the 20% off orders over $200 does not apply, so use whichever fixed discount matches the product you are buying. For lower priced items such as the U3P gravity filter, the $50 off coupon (which brings that system to $149) will be the right pick when the price and product match. Use the $50 off coupon for the U3P gravity water filter system.
• Orders around $200 to $300: both the $215 off voucher and the 20% off (requires over $200) may be relevant. On a $300 order, the $215 off voucher above reduces the total by $215, leaving $85. The 20% off over $200 would take 20% off $300, saving $60, leaving $240. In that case the $215 off voucher saves more, so use the $215 off voucher.
• Higher value orders above about $1,075: the 20% off orders over $200 becomes better once 20% of your order exceeds $215. For example on a $1,200 order, the $215 off voucher above saves $215, leaving $985. The 20% off would take 20% off $1,200, saving $240 and leaving $960, so the 20% code is the better choice for large baskets that are eligible and contain selected items.
• Buying a different specific model: use the model specific coupons. The $170 off voucher is specifically for the Y11C system; the $120 off offers apply to the Y9 and to other selected products; $80 off applies to the T1-400ALK under sink system. If you are buying one of those named models, apply that model coupon because it gives a guaranteed dollar reduction for that product.
• Sale items and selected product discounts: the site sale lists up to 25% off selected products. If a sale price plus an additional fixed coupon applies, check which gives the lower final price on that specific item. The 10% off selected products coupon states it cannot be combined with other offers, so it only helps when you cannot use a larger fixed voucher.
Our records show 129 offers listed for SimPure in the 12 months to October 2026, 108 of them were codes and our team ran 104 checkout tests across 103 offers in the 12 months to October 2026. Percentage codes were less common; the biggest percent code in that period was 46% and the typical percent code was 16%.
When choosing, calculate the final total for your cart with each applicable coupon and take the one that leaves the lower total. Where a coupon’s terms say you can only use one code, follow that rule; otherwise compare the final totals to decide.