Got my disconnects from PPE today. They look great.
I went with the couplers with female threads so that I could add straight or right-angle barb connectors as required. These also appear to be compatible with the straight-through couplings from McMaster-Carr (but less expensive).
Price of fittings (starting at bottom, going clockwise in photo):
BSTH-4: ST Series Couplers ($6 each)
125HBL-8-8: 1/2" male barbed inserts ($1 each)
129HBL-8-8: 1/2" elbow barbed inserts ($3.25 each)
ST902-12: replacement seals ($0.63 each)
BSTH-N4M: ST series 1/2" male nipples ($2.25 each)
BSTH-N4: ST series 1/2" female nipples ($2.45 each)
Stainless also available in catalog. Made in America (no duty to Canada). Ships UPS or USPS (a must for Canadians).
Total cost for everything in the photo: $67.55. Shipping to Calgary by USPS Priority Mail: $26.90.
Can't wait to try these out.