I have an Hammock Gear Phoenix 20F underquilt for sale.  I purchased it new in June of 2022 and has been used only a handful of nights.  It is rated for 20F, 950D, 2 ounces of overfill, Dark Olive 10D fabric (outside), Black 10D fabric (inside) and weighs 16.05 ounces on my scale.  Includes stuff sack, cotton storage bag and shipping CONUS.  $150.00 PayPal only.  Pictures available upon request.  PM me if interested.  Thanks.  John