Monday: 20% off $300+ orders at Monoprice

For Monday 11/6/17, coupon code HELPFUL gets you 20% off orders of $300+ in eligible products at the Monoprice website. As usual, you can test coupon and get a S&H estimate without logging in or signing up. The $300 limit must be reached only with items eligible for the coupon. Ineligible items in your shopping cart do not count towards the $300 limit.