Best in 7 days
Pay in installments of $15.28 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 19 - Jun 24
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Interpump K3.1 Flow Sensitive Unloader Valve – 100 Bar, 11–16 LPM, 3/8" Inlet, 1/2" OutletThe Interpump K3. 1 is a flow sensitive unloader valve engineered to regulate system pressure and protect pressure washer pumps in lower flow setups. Designed for smaller jetting systems and mobile washers, it automatically diverts water to bypass when the spray trigger is released. This unit supports up to 100 Bar pressure and a flow rate between 1116 L min, making it ideal for compact pressure cleaning units. The robust brass body with stainless
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 1177 reviews
Sort
Product Reviews
★★★★★ 5
Works for the rest and sleep I need.
Gives me a restful sleep.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
★★★★★ 1
Do not buy
Cheap, but tastes bad. I guess it worked but I tossed a big bottle of it and got the higher price Spring Valley 10 kg melatonin which works well. The taste is great (strawberry) and highly chewable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
★★★★★ 5
Got it
They are good vitamins. Thank you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
★★★★★ 2
not happy it said gummies that why l bought them
this product said that they were gummy’s but they’re actually chewable tablets. I can’t eat tablets. I’m very disappointed that it said gummy. That’s the only reason why I bought it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
★★★★★ 4
Not as effective
I don't find the chewable as effective as the ones that dissolve. These don't seem to give me the same relaxing quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
