Irrigation Equipment we use

Source: Mainly Drip Depot, which is exclusively an online retailer
T connectors (called Perma-Loc Tubing Tee - Size : 3/4")
   Used to connect drip tubing from the main line (mainly for o rings that go around trees/shrubs):

See purchase order 5/29/24 (also in "irrigation purchases" folder:

purchase on drip depot 6/13/24:"

Can also connect directly off the main line without a tee:

distribution tubing ie not drip tubing, not mainline tubing, but the stuff in between (blue stripe Toro 1/2" drip tubing)
   Dimensions = .710 O.D. x .620 I.D (outer diameter and inner diameter)

Goof plugs: most places dont sell these with the wide thumbtack end, so you may have to purchase from amazon 

Pipe fitting to convert underground sprinkler line to drip: